Establishment of the age of an individual by examination of their skeletal structure.
A means of identifying the age of an animal or human through tooth examination.
One of a set of bone-like structures in the mouth used for biting and chewing.
The failure to retain teeth as a result of disease or injury.
The collective tissues from which an entire tooth is formed, including the DENTAL SAC; ENAMEL ORGAN; and DENTAL PAPILLA. (From Jablonski, Dictionary of Dentistry, 1992)
The teeth of the first dentition, which are shed and replaced by the permanent teeth.
The upper part of the tooth, which joins the lower part of the tooth (TOOTH ROOT) at the cervix (TOOTH CERVIX) at a line called the cementoenamel junction. The entire surface of the crown is covered with enamel which is thicker at the extremity and becomes progressively thinner toward the cervix. (From Jablonski, Dictionary of Dentistry, 1992, p216)
The part of a tooth from the neck to the apex, embedded in the alveolar process and covered with cementum. A root may be single or divided into several branches, usually identified by their relative position, e.g., lingual root or buccal root. Single-rooted teeth include mandibular first and second premolars and the maxillary second premolar teeth. The maxillary first premolar has two roots in most cases. Maxillary molars have three roots. (Jablonski, Dictionary of Dentistry, 1992, p690)
The emergence of a tooth from within its follicle in the ALVEOLAR PROCESS of the MAXILLA or MANDIBLE into the ORAL CAVITY. (Boucher's Clinical Dental Terminology, 4th ed)
An extra tooth, erupted or unerupted, resembling or unlike the other teeth in the group to which it belongs. Its presence may cause malposition of adjacent teeth or prevent their eruption.
Congenital absence of or defects in structures of the teeth.
Loss of the tooth substance by chemical or mechanical processes
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Domesticated bovine animals of the genus Bos, usually kept on a farm or ranch and used for the production of meat or dairy products or for heavy labor.
Any of the eight frontal teeth (four maxillary and four mandibular) having a sharp incisal edge for cutting food and a single root, which occurs in man both as a deciduous and a permanent tooth. (Jablonski, Dictionary of Dentistry, 1992, p820)
A DNA-dependent RNA polymerase present in bacterial, plant, and animal cells. The enzyme functions in the nucleolar structure and transcribes DNA into RNA. It has different requirements for cations and salts than RNA polymerase II and III and is not inhibited by alpha-amanitin. EC 2.7.7.6.
Diseases of domestic cattle of the genus Bos. It includes diseases of cows, yaks, and zebus.
The aftermost permanent tooth on each side in the maxilla and mandible.
Extraoral body-section radiography depicting an entire maxilla, or both maxilla and mandible, on a single film.
The most posterior teeth on either side of the jaw, totaling eight in the deciduous dentition (2 on each side, upper and lower), and usually 12 in the permanent dentition (three on each side, upper and lower). They are grinding teeth, having large crowns and broad chewing surfaces. (Jablonski, Dictionary of Dentistry, 1992, p821)
The process of TOOTH formation. It is divided into several stages including: the dental lamina stage, the bud stage, the cap stage, and the bell stage. Odontogenesis includes the production of tooth enamel (AMELOGENESIS), dentin (DENTINOGENESIS), and dental cementum (CEMENTOGENESIS).
Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time.
The fundamental dispositions and traits of humans. (Merriam-Webster's Collegiate Dictionary, 10th ed)
Differences of opinion or disagreements that may arise, for example, between health professionals and patients or their families, or against a political regime.
Individual or group aggressive behavior which is socially non-acceptable, turbulent, and often destructive. It is precipitated by frustrations, hostility, prejudices, etc.
A genus of ruminants in the family Bovidae. The common name chamois usually refers to the species Rupicapra rupicapra. Rupicapra pyrenaica, found in the Pyrenees, is more properly referred to as the Pyrenean chamois.
A form of alveolitis or pneumonitis due to an acquired hypersensitivity to inhaled antigens associated with farm environment. Antigens in the farm dust are commonly from bacteria actinomycetes (SACCHAROPOLYSPORA and THERMOACTINOMYCES), fungi, and animal proteins in the soil, straw, crops, pelts, serum, and excreta.
Parliamentary democracy located between France on the northeast and Portugual on the west and bordered by the Atlantic Ocean and the Mediterranean Sea.
The common orally transmitted traditions, myths, festivals, songs, superstitions, and stories of all peoples.
A syndrome characterized by marked limitation of abduction of the eye, variable limitation of adduction and retraction of the globe, and narrowing of the palpebral fissure on attempted adduction. The condition is caused by aberrant innervation of the lateral rectus by fibers of the OCULOMOTOR NERVE.
The science and technology dealing with the procurement, breeding, care, health, and selection of animals used in biomedical research and testing.
A species of POLYOMAVIRUS, originally isolated from the brain of a patient with progressive multifocal leukoencephalopathy. The patient's initials J.C. gave the virus its name. Infection is not accompanied by any apparent illness but serious demyelinating disease can appear later, probably following reactivation of latent virus.
Use for general articles concerning veterinary medical education.
The science of breeding, feeding and care of domestic animals; includes housing and nutrition.
The study of NUTRITION PROCESSES, as well as the components of food, their actions, interaction, and balance in relation to health and disease in animals.
The study of early forms of life through fossil remains.
The science of the earth and other celestial bodies and their history as recorded in the rocks. It includes the study of geologic processes of an area such as rock formations, weathering and erosion, and sedimentation. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Disciplines that apply sciences to law. Forensic sciences include a wide range of disciplines, such as FORENSIC TOXICOLOGY; FORENSIC ANTHROPOLOGY; FORENSIC MEDICINE; FORENSIC DENTISTRY; and others.
The scientific study of past societies through artifacts, fossils, etc.
Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins.
The degree of similarity between sequences of amino acids. This information is useful for the analyzing genetic relatedness of proteins and species.
Pollutants, present in soil, which exhibit radioactivity.
Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)
Uranium. A radioactive element of the actinide series of metals. It has an atomic symbol U, atomic number 92, and atomic weight 238.03. U-235 is used as the fissionable fuel in nuclear weapons and as fuel in nuclear power reactors.
Organizations representing specialized fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., National Academy of Sciences, Brookings Institution, etc.
The study of plant lore and agricultural customs of a people. In the fields of ETHNOMEDICINE and ETHNOPHARMACOLOGY, the emphasis is on traditional medicine and the existence and medicinal uses of PLANTS and PLANT EXTRACTS and their constituents, both historically and in modern times.
Group of hemorrhagic disorders in which the VON WILLEBRAND FACTOR is either quantitatively or qualitatively abnormal. They are usually inherited as an autosomal dominant trait though rare kindreds are autosomal recessive. Symptoms vary depending on severity and disease type but may include prolonged bleeding time, deficiency of factor VIII, and impaired platelet adhesion.
Excessive uterine bleeding during MENSTRUATION.
A high-molecular-weight plasma protein, produced by endothelial cells and megakaryocytes, that is part of the factor VIII/von Willebrand factor complex. The von Willebrand factor has receptors for collagen, platelets, and ristocetin activity as well as the immunologically distinct antigenic determinants. It functions in adhesion of platelets to collagen and hemostatic plug formation. The prolonged bleeding time in VON WILLEBRAND DISEASES is due to the deficiency of this factor.
The branch of medicine concerned with the physiological and pathological aspects of the aged, including the clinical problems of senescence and senility.
A subtype of von Willebrand disease that results from qualitative deficiencies of VON WILLEBRAND FACTOR. The subtype is divided into several variants with each variant having a distinctive pattern of PLATELET-interaction.
Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesized to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics.
A subtype of von Willebrand disease that results from a partial deficiency of VON WILLEBRAND FACTOR.

The development and structure of the chimpanzee mandible. (1/77)

The sites of growth and remodeling, and the associated changes in cortical bone structure, have been studied in the chimpanzee mandible and compared with those previously reported in the human and macaque mandibles. The location of the principal sites of growth, and the distribution of the areas of deposition and resorption in the ramus, were found to be similar in all three species. In the chimpanzee, unlike Man, the bone being deposited at the condyle, posterior border of the ramus and coronoid process was plexiform in nature, indicating very rapid growth. The pattern of remodeling in the mandibular body, on the other hand, showed marked species differences at the chin and on the submandibular lingual surface, which account for the contrasts seen in the adult morphology of these regions. Although the pattern of distribution of cortical densities differed from that of surface remodeling, the information they give is complementary in analysing bone growth. The densest regions were found to coincide with sites of consistent lamellar deposition, while the least dense regions were those where plexiform bone was formed. Areas where remodeling led to the greatest reorientation of bone tissue within the cortex showed the greatest disparity between the two patterns.  (+info)

Delayed dental age in boys with constitutionally delayed puberty. (2/77)

It was the purpose of this study to evaluate dental age in boys with delayed puberty and to compare them with a group of normal, healthy boys. The study group consisted of eight boys with constitutional delay of growth and puberty (CDGP), older than 14 years, and with a testis volume smaller than 4 ml. The control group comprised 38 normal, healthy boys, aged between 12.4 and 14.3 years. Dental age was assessed using the Demirjian method and, on the basis of this evaluation, a dental delay score (i.e. dental age minus chronological age) was calculated in the CDGP and the control group. It was found that Demirjian's dental age assessment is a valid method for scoring dental age in Belgian boys between 12 and 14 years of age, and that CDGP boys showed a significant delay in dental development compared with normal boys (P = 0.0085). This study revealed a significant retardation in dental maturation of boys with CDGP.  (+info)

A comparison of the USDA ossification-based maturity system to a system based on dentition. (3/77)

Two studies using commercially fed cattle were conducted to determine the relationship of the USDA bone ossification-based maturity system to one based on the number of permanent incisors present at slaughter. These studies showed that 91.5 to 100% of cattle with zero permanent incisors (< 23.8 mo of age), 89.1 to 97.5% of cattle with two permanent incisors (23.8 to 30.4 mo of age), 75 to 82.2% of cattle with four permanent incisors (30.4 to 38.0 mo of age), 64 to 72.5% of cattle with six permanent incisors (38.0 to 45.3 mo of age), and 40% of cattle with eight permanent incisors (> 45.3 mo of age) were graded as A maturity by the USDA maturity classification system. Kappa tests revealed no statistical relationship between the dentition- and skeletal ossification-based maturity systems. Dentition-based maturity agreed with ossification/lean maturity for only 162 of 1,264 carcasses in Exp. 1 and only 54 of 200 carcasses in Exp. 2. Cattle with two, four, six, or eight permanent incisors were classified in more youthful categories of USDA bone ossification/lean maturity than they should have been. Male cattle were more likely to be misclassified into a younger age category by the USDA system than were female cattle. It seems that determining physiological maturity by number of permanent incisors rather than by the current USDA method of subjectively evaluating skeletal and lean maturity may prove to be a more accurate technique of sorting beef carcasses into less-variable age groups.  (+info)

Daily incremental lines in sika deer (Cervus nippon) dentine. (4/77)

This work was designed to observe the dentine incremental lines of the sika deer (Cervus nippon) fawns and to investigate their periodicity using the chronological labeling method with fluorochromes. The incremental lines were observed in decalcified specimens stained by Bodian's silver technique, and the fluorescence-labeled lines were observed in undecalcified and ground specimens. In the silver stained specimens, there were two types of lines, deeply stained thick lines and faintly stained minute regular incremental lines. The intervals and staining intensities of the deeply stained thick lines were very similar to those of the fluorescence-labeled lines in the ground specimens obtained from the same tooth, and hence, it appeared that the both lines were identical. The number of minute incremental lines between the deeply stained thick lines was the same as that of days between the time when each fluorescent labeling injection was made. Therefore, it seemed that each minute incremental line was formed each day. The possibility of age estimation in days using diurnal dentine increments was discussed.  (+info)

Cleft type and Angle's classification of malocclusion in Korean cleft patients. (5/77)

This study was performed to investigate the contributing factors, such as cleft type, side of cleft, patient's age, and gender, associated with Angle's classification of malocclusion in Korean cleft patients. The records of 250 cleft patients (175 males, 75 females) who attended the Department of Orthodontics, Seoul National University Dental Hospital between 1988 and 1999 were examined. The percentages of subjects with cleft lip (CL), cleft lip and alveolus (CLA), cleft palate (CP), and cleft lip and palate (CLP) were 7.6, 19.2, 9.6, and 63.6, respectively. The overall distributions of unilateral and bilateral clefts were 76 and 24 per cent, respectively. The overall percentages of Class I, II, and III malocclusions were 18.5, 8.8, and 72.7. The frequency of Class III malocclusions was most prevalent in all age groups. Bivariate analysis showed that whilst gender was not significant, the type of cleft significantly influenced the development of a Class III malocclusion (P < 0.01). Using logistic regression analysis, subjects in the CP (P < 0.05) and CLP groups (P < 0.01) were 3.9 and 5.5 times more likely to have a Class III malocclusion than those in the CL group. There was, however, no statistical difference in the prevalence of a Class III malocclusion between the CL and the CLA groups (P > 0.05). When the degree of cleft involvement in the palate increased, so did the predominance of a Class III malocclusion.  (+info)

Forensic odontology: the roles and responsibilities of the dentist. (6/77)

Dentistry has much to offer law enforcement in the detection and solution of crime or in civil proceedings. Forensic dental fieldwork requires an interdisciplinary knowledge of dental science. Most often the role of the forensic odontologist is to establish a person's identity. Teeth, with their physiologic variations, pathoses and effects of therapy, record information that remains throughout life and beyond. The teeth may also be used as weapons and, under certain circumstances, may leave information about the identity of the biter. Forensic odontology has an important role in the recognition of abuse among persons of all ages. Dental professionals have a major role to play in keeping accurate dental records and providing all necessary information so that legal authorities may recognize malpractice, negligence, fraud or abuse, and identify unknown humans.  (+info)

An Early Pleistocene hominin mandible from Atapuerca-TD6, Spain. (7/77)

We present a mandible recovered in 2003 from the Aurora Stratum of the TD6 level of the Gran Dolina site (Sierra de Atapuerca, northern Spain). The specimen, catalogued as ATD6-96, adds to the hominin sample recovered from this site in 1994-1996, and assigned to Homo antecessor. ATD6-96 is the left half of a gracile mandible belonging to a probably female adult individual with premolars and molars in place. This mandible shows a primitive structural pattern shared with all African and Asian Homo species. However, it is small and exhibits a remarkable gracility, a trait shared only with the Early and Middle Pleistocene Chinese hominins. Furthermore, none of the mandibular features considered apomorphic in the European Middle and Early Upper Pleistocene hominin lineage are present in ATD6-96. This evidence reinforces the taxonomic identity of H. antecessor and is consistent with the hypothesis of a close relationship between this species and Homo sapiens.  (+info)

Dental age in Dutch children. (8/77)

Dental age was studied in a sample of 451 Dutch children (226 boys and 225 girls) according to the method of Demirjian. They were born between 1972 and 1993 and were between 3 and 17 years of age at the time a dental pantomogram (DPT) was obtained. All children were placed in the age group closest to their chronological age. All 451 DPTs were scored by one examiner. A subset of 52 DPTs was scored by a second examiner and the intra-class correlation coefficient (ICC) and Cohen's kappa were calculated. The ICC was 0.99 and Cohen's kappa 0.68. Boys and girls were analysed separately.A significant difference was found between chronological age and dental age. On average, the Dutch boys were 0.4 years and the girls 0.6 years ahead of the French-Canadian children analysed by Demirjian. Therefore, the French-Canadian standards were not considered suitable for Dutch children. New graphs for the Dutch population were constructed using a logistic curve with the equation Y = 100*{1/(1 + e(-alpha(x - x0)))} as a basis. The 90 per cent confidence interval was calculated. To determine whether the logistic curve was correct, a residual analysis was carried out and scatter plots of the differences were made. The explained variance was 93.9 per cent for the boys and 94.8 per cent for the girls. Both the residual analysis and the scatter plots indicated that the logistic curve was appropriate for use with Dutch children. In addition to the graphs, tables were produced which transfer the maturity scores calculated by the method of Demirjian into Dutch dental age.  (+info)

This study aims to determine which age assessment data using the third molar development values (local or international) is suitable for estimating the age of Malays or Chinese in Malaysia. A sample of 60 panoramic images of Malays and Chinese aged between 13.58 to 21.25 years were selected. Different assessment surveys which included the studies by Yusof et al. (2015), Wilson (2005), Johan et al. (2012), Mincer et al. (1993), AlQahtani et al. (2010) and Gunst et al. (2003) were employed to estimate the age from the developing third molar on the panoramic images studied. The estimated ages were compared to the chronological age of the selected Malaysians. All the datas were then recorded on Microsoft Excel sheet. The two observers were then subjected to the Intraclass Correlation Coeffecient (ICC) inter-observer reliability test.The highest number of correspondence (65%) between the chronological and estimated age (within one year) was for the survey conducted by Wilson. With regards to ...
This study aims to determine which age assessment data using the third molar development values (local or international) is suitable for estimating the age of Malays or Chinese in Malaysia. A sample of 60 panoramic images of Malays and Chinese aged between 13.58 to 21.25 years were selected. Different assessment surveys which included the studies by Yusof et al. (2015), Wilson (2005), Johan et al. (2012), Mincer et al. (1993), AlQahtani et al. (2010) and Gunst et al. (2003) were employed to estimate the age from the developing third molar on the panoramic images studied. The estimated ages were compared to the chronological age of the selected Malaysians. All the datas were then recorded on Microsoft Excel sheet. The two observers were then subjected to the Intraclass Correlation Coeffecient (ICC) inter-observer reliability test.The highest number of correspondence (65%) between the chronological and estimated age (within one year) was for the survey conducted by Wilson. With regards to ...
Cattle are placed in a cattle crush in order to restrain them prior inspecting the mouth and amount of teeth that each animal has. The temporary teeth are in part erupted at birth, and all the incisors are erupted in twenty days; the first, second and third pairs of temporary molars are erupted in thirty days; the teeth have grown large enough to touch each other by the sixth month. Temporary incisors or milk teeth are smaller than the permanent incisors. Cattle have thirty-two teeth, including six incisors or biting teeth and two canines in the front on the bottom jaw. The canine teeth are not pointed but look like incisors. The incisor teeth meet with the thick hard dental pad of the upper jaw. Cattle have six premolars and six molars on both top and bottom jaws for a total of twenty-four molars. The teeth of cattle are designed primarily for grinding, and they use their rough tongues to grasp grass and then nip it off between their incisors and the dental pad.[1] There is controversy on the ...
FETAL GESTATIONAL AGE ESTIMATION BY FETAL FOOT LENGTH MEASUREMENT AND FETAL FEMUR TO FOOT LENGTH RATIO IN SOUTH INDIAN POPULATION - A PROSPECTIVE STUDY.
This item was taken from the IEEE Conference Cross-database age estimation based on transfer learning Due to the temporal property of age progression, face images with aging features display some sequential patterns with low-dimensional distributions, which can be effectively extracted by subspace learning algorithms. The patterns extracted by traditional subspace learning methods are mostly restricted to a certain database. As a result, the performance cannot be generalized when applying th
Age estimation is required for forensic cases such as minors without documentation and age disputed asylum seekers. Cervical vertebral maturation (CVM) is a potential method to estimate age, particularly when third molars are mature or absent. The aim of this study was to assess the accuracy of estimating age by maturation of the cervical vertebra, the mandibular second (M2) and third (M3) molars in a group of males. The sample consisted of lateral cephalograms of 60 boys from the Bolton-Brush online collection and 53 from Burlington online collection aged 10 to 15 years. CVM age was calculated from age category and mean age and transition age of CVM stages, calculated from raw data of 69 boys (aged 9 to 15 years) in Lamparski (1972). Dental age was calculated using mandibular second and third molar stages from Liversidge (2009). The mean difference and absolute mean difference between CVM age and dental ages and chronological ages was calculated. CVM and molar tooth stage assessment reliability ...
During this stage hæmatemesis, hæmoptysis, melænæ, and hæmaturia have been observed, and petechiæ of the skin and mucous membranes is common ...
Read GC-MS/MS method for age determination of fingerprints, Monatshefte für Chemie - Chemical Monthly on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Whelton, H.J.; Power, S.B., 1993: The use of badger bacula as a method of age determination in a badger population infected with tuberculosis
Biosciences, Biotechnology Research Asia is an international, open access, peer reviewed research journal covering all aspects of Biosciences and Biotechnology field.
A simple and rapid method has been developed for the direct determination of the age (i.e. the prodution date) of uranium-containing nuclear materials by inductively coupled plasma mass spectrometry based on the measurement of the 230 Th/234 U radionuclide ratio. The concentration of the trace-level 230 Th in the samples was measured directly without the need of prior chemical separation. the tailing of the highly abundant 238 U peak, which is tipically around 10 orders of magnitude higher that that of the 230 Th signal, was eliminated by the matematical deconvolution of the measured mass spectrum. The 230 Th and 234 U contents were quantified by isotope dilution method. thje developed method was validated using reference materials of known production date ...
Documents : WHO/Mal/515.65 (‎WHO/Vector Control/179.65)‎, WHO/Mal/516.65 - 525.65, WHO/Mal/526.65 (‎WHO/Vector Control/154.65)‎, WHO/Mal/527.65 - 528.65, WHO/Mal/529.65 (‎WHO/Vector Control/186.65)‎, WHO/Mal/530.65 (‎WHO/EBL/52.65)‎, WHO/Mal/531.65 (‎WHO/VC/185.65)‎, WHO/Mal/532.65, WHO/Mal/66.533 - 66.534, WHO/Mal/66.535 (‎WHO/Fil/66.46)‎, WHO/Mal/66.536-66.537, WHO/Mal/66.538 (‎WHO/Vector Control/66.191)‎, WHO/Mal/66.539, WHO/Mal/66.540 (‎WHO/Pharm/66.430)‎, WHO/Mal/66.541 (‎WHO/Vector Control/66.193)‎, WHO/Mal/66.542, WHO/Mal/66.543 (‎WHO/Vector Control/66.180 - WHO/Fil/66.49)‎, WHO/Mal/66.544, WHO/Mal/66.545-66.548, WHO/Mal/66.549 (‎WHO/Vector Control/66.202)‎, WHO/Mal/66.550 (‎WHO/Vector Control/66.201)‎, bound in 1 ...
TY - JOUR. T1 - Legal medical age estimation using two methods measuring root dentin translucency: Comparative analysis. AU - Carrasco, Tapia Patricio. AU - González, Srur Joaquín. AU - Brizuela, Cordero Claudia. AU - Inostroza, Silva Carolina. PY - 2014/1/1. Y1 - 2014/1/1. N2 - All rights reserved. In a forensic investigation there are several forensic and criminology unknowns to be elucidated, such as, species, sex, age, identity, cause and date of death of the victim or perpetrator. Some biological phenomena have been used to collaborate in determining the forensic age of an individual. Many authors and researchers have proposed different ways to perform this estimate. The phenomenon of root dentine translucency (RDT) is associated with the increase of age of the individual and has proven to be useful in the estimation of this unknown. The objective of this study was to compare the accuracy in estimating forensic age in three age ranges, by measurement of RDT, using two different ...
Poor skeletal preservation is a ubiquitous problem in the Maya area, complicating the use of macroscopic techniques aimed at producing age range estimates. An important, but underutilized, set of skeletal approaches to aging employ microscopic methods, which rely on quantifying age-related histomorphological changes. This study focuses on histological structures in ribs and has two objectives: 1) to refine age estimations for burials from two rockshelters in the Caves Branch River Valley, Belize using regression formulas derived from contemporary Maya populations (Pavon et al. 2010); and 2) to explore the importance of sampling location in the application of these formulae. The method of Pavon et al. (2010) suggests using the midshaft of the fourth rib, but ancient Maya remains are often too fragmentary to confidently seriate and/or the midshaft may be absent. In an effort to determine whether the lack of locational consistency negatively affects this method, a modern anatomy sample of known age-at
Epigenetic clocks comprise a set of CpG sites whose DNA methylation levels measure subject age. These clocks are acknowledged as a highly accurate molecular correlate of chronological age in humans and other vertebrates. Also, extensive research is aimed at their potential to quantify biological aging rates and test longevity or rejuvenating interventions. Here, we discuss key challenges to understand clock mechanisms and biomarker utility. This requires dissecting the drivers and regulators of age-related changes in single-cell, tissue- and disease-specific models, as well as exploring other epigenomic marks, longitudinal and diverse population studies, and non-human models. We also highlight important ethical issues in forensic age determination and predicting the trajectory of biological aging in an individual.
Epigenetic clocks comprise a set of CpG sites whose DNA methylation levels measure subject age. These clocks are acknowledged as a highly accurate molecular correlate of chronological age in humans and other vertebrates. Also, extensive research is aimed at their potential to quantify biological aging rates and test longevity or rejuvenating interventions. Here, we discuss key challenges to understand clock mechanisms and biomarker utility. This requires dissecting the drivers and regulators of age-related changes in single-cell, tissue- and disease-specific models, as well as exploring other epigenomic marks, longitudinal and diverse population studies, and non-human models. We also highlight important ethical issues in forensic age determination and predicting the trajectory of biological aging in an individual.
This paper presents a study into the potential of visible spectroscopy with chemometrics as an approach to dating blue ball tip inks on paper documents. Analysis of six inks left under various conditions found that the majority of those kept in the dark could still be matched to the source pen after 32 months of ageing. Conversely, the majority of those exposed to light exhibited rapid spectral changes that continued throughout the 32 month period. Partial least squares regression (PLSR) was used to generate dating models for inks aged with exposure to light. Evaluation using an external test set found absolute dating to be challenging for these ink deposits within the first 2-6 months of ageing. However, predictive accuracy was found to improve for long-term ageing, with two-year old samples yielding age estimates with a maximum error of 6 months. This rapid, non-destructive methodology could assist document examiners in the relative ageing or approximate age determination of questioned ...
My field and laboratory research is focused on paleobiological and biostratigraphic questions concerning the evolution of Mesozoic and Cenozoic terrestrial biotas. Currently I am studying the systematic interrelationships of Mesozoic mammals, making use of characters of both skeletal morphology and enamel microstructure. A stratigraphically controlled series of early Paleocene (Puercan) local faunas calibrated through 40Ar/39Ar age determinations provides the basis for analyses of the patterns and tempos of terrestrial faunal change during the first million years after the extinctions used to mark the end of the Cretaceous.. Graduate student research projects include: Investigation of the phylogenetic interrelationships, locomotor evolution, and turnover rates of Eocene artiodactyls; analysis of phylogenetic interrelationships and biogeographic distributions of Late Cretaceous and Early Cenozoic members of the Multituberculata; and study of the origins and evolutionary diversification of ...
Additional information:. total gas age - this row provides the mean age of all of the individual analyses (heating steps). Total gas ages and errors calculated by weighting individual steps by the fraction of 39Ar released. This age/error is analogous to a conventional K/Ar age determination. Other information in this row include the number of steps included in the weighted mean (n=10), the total moles of 39ArK contained within the sample and the mean K/Ca ratio for the sample. plateau - this row provides the mean age of those individual analyses specified by the geochronologist. Plateau weighted mean ages are calculated by weighting each age analysis by the inverse of the variance. Weighted mean error calculated using the method of (Taylor, 1982). Plateau must comprise at least two contiguous steps. Beyond this requirement, different 40Ar/39Ar laboratories have different criteria for defining plateau segments. Other information in this row include the MSWD (calculated for n-1 degrees of freedom ...
85% of Sr reacting with N2O and >70% Sr reacting with SF6; Rb does not react with either gas. As a result, the sensitivity for Sr reaction products is ∼10 times higher with N2O and ∼8 times higher with SF6 compared to O2. With these more reactive gases, the error of mica isochron ages, calibrated against a newly developed nano-particulate pressed powder tablet of mica-Mg, is ∼1% using a 50 μm laser spot. Our tests show that both N2O and SF6 form interfering reaction products, e.g., SrOH (N2O), SiF3 and TiF3 (SF6) that are difficult to handle using single mass spectrometer instruments, but which can be overcome using MS/MS. Using SF6 combined with H2, it is possible to measure 40Ca+ as 40Ca19F+, free from interference of 40Ar+ and 40K+. This facilitates the dating of micas by the K-Ca isotopic system; we present the first in situ K-Ca age determination. ...
By request from Bane NORs maintenance department, registration of vegetation was done on selected stations along four railway lanes during the summer of 2016. These four lanes were chosen because they are situated in different climate zones and have stations with plantings of varying size and complexity. The registrations included species identification, vegetation dimensioning, age determination, ground location and ground cover materials, weed growth, bush coverage, pests and damage, vitality, and need for maintenance measures. On the 23 stations, a total of 295 trees and area of 2491 m2 covered by shrub were registered. Of the 295 trees there were 31 tree species, 29 species and 2 cultivars. Of the 2491 m2 of shrub field there were 40 shrubs, 26 species and 14 cultivars. The use of vegetation was relatively little varied, and two birch species accounted for almost 30% of all tree species. There was greater variation in the use of bushes, but the largest variation was distributed on a few of ...
From the National Institutes of Health, National Institute of Diabetes, Digestive, and Kidney Disease, and National Cancer Institute, Bethesda, Maryland. Acknowledgments: The authors thank the study participants, their families, and their referring physicians and the nurses and fellows of the Clinical Center of the National Institutes of Health. They also thank Mitchell Gail MD, PhD, for expert statistical advice; David Pee, MPhil, for expert statistical computing; Suvimol Hill, MD, for bone age determination; Anita Pickus, MA, for audiologic assessment; Julio Panza, MD, for echocardiographic analysis; Pedro Martinez, MD, for attention-deficit hyperactivity disorder testing; and Jacob Robbins, MD, Rosemary Wong, MD, Richard Eastman, MD, and Miriam Levav, PhD, for critical review of the manuscript. Requests for Reprints: Bruce D. Weintraub, MD, National Institutes of Health, MCEB, 10 Center Drive, MSC 1758, Building 10, Room 8D14, Bethesda, MD 20892-1758. Current Author Addresses: Drs. ...
Radiometric dating has been used for about 60 years to determine the age of samples containing certain unstable elements. This technique was established as an accurate method for age determination by Arnold and Libby in 1949. As an example of how radiometric dating might be used to determine the age of a material, imagine that…
The Big Y (and FGC Elite) tests are discovering a handful of 2 bit MNPs (Multiple Nucleotide Polymorphisms). This is where two side-by-side bases are changed. Depending on who is doing the calling the you may see a single SNP call or two SNP calls. What we need to understand is their rate of occurrence. Depending on the rate of occurrence compared to SNPs in Big-Y results some of the SNP counting age determination methods may need a filter for MNPs. Note that the existence of MNPs will
Sweden will make medical age assessments of unaccompanied asylum seekers by examining their teeth and knee joints. The new system, unveiled on Friday by the national forensic medicine agency (Rättsmedicinalverket), aims to tackle doubts over the accurate age of those who seek asylum in the country.
ModuleWorks shows latest Dental developments at IDS: Feb 12, 2015 -- At the International Dental Show in March, ModuleWorks will be showing all the latest developments in the ModuleWorks Dental product range. Originally launched back in 2009, the product aims to bring the benefits of hundreds of man-years of toolpath development technology from the CAM market to the Dental market. And in the two years since the previous IDS show, this technology has enabled many new toolpath …
Its not always easy to tell a newborns age by their size. Premature babies are usually small, but full-term and past-term babies can be small, too. Thats when healthcare providers will do a gestational assessment to determine if a newborn needs special treatment.
Its not always easy to tell a newborns age by their size. Premature babies are usually small, but full-term and past-term babies can be small, too. Thats when healthcare providers will do a gestational assessment to determine if a newborn needs special treatment.
This dissertation presents a new and practical method of adult age estimation with successful tests of its validity and repeatability. Six qualitative criteria evident in oral radiographs were developed from 37 subjects represented on three ...
Part of the Hallmarks of Aging series. Did you know you have two different ages? The obvious one is chronological age, or the number of years since yo.... ...
In this study, the age structures of the four populations of Roughtail Rock Agama, Stellagama stellio distributed in Turkey were determined and their long bone development was examined from a histological perspective. The ages of some 218individuals (32 juveniles, 86 male male, 100 female female) captured from the Mediterranean, Transitional Mediterranean, Aegean, and Central Anatolia Regions were computed with the method of skeletochronology, and the correlation between age and the SVL (the snout-vent length) was compared. The mean SVL was greater in males than in females, and this difference was found statistically significant in all populations except for the Central Anatolian population. The mean ages for male and female individuals were calculated as 3.44 +/- 1.26 and 3.18 +/- 1.18 years in the Mediterranean population, as 4.65 +/- 1.25 and 3.69 +/- 1.31 years in the Transitional Mediterranean population, as 4.05 +/- 1.32 and 3.36 +/- 1.46 years in the Aegean population, and as 4.20 +/- ...
ABSTRACT: Many methods of age determination have been used to date. However, most of them require laboratory procedures which are, in general, not available for wildlife managers in the field. In this paper we attempt to standardize the age categories for six mammal species through the analysis of dental wear, dental eruption and body mass. We analyzed 632 skulls, including Mazama nemorivaga (brown brocket deer), Mazama americana (red brocket deer), Tayassu pecari (white-lipped peccary), Pecari tajacu (collared peccary), Cuniculus paca (paca) and Dasyprocta leporina (agouti). Using biological and morphological criteria we define four age categories: young, sub adult, adult and senescent adult. Scores and variables of molar cusp wear and eruption were defined for each age category within each species. We found significant differences in mean weights among age categories for D. leporina (F = 81.1; df = 3; p < 0.05), C. paca (F = 39.0; df = 3; p < 0.05), P. tajacu (F = 24.6; df = 3; p < 0.05) and ...
Horvaths development of the DNA methylation based age estimation method known as epigenetic clock was featured in Nature magazine.[2] In 2011 Horvath co-authored the first article that described an age estimation method based on DNA methylation levels from saliva.[3] In 2013 Horvath published a single author article on a multi-tissue age estimation method that applies to all nucleated cells, tissues, and organs.[4] This discovery, known as the Horvath clock, was unexpected because cell types differ in terms of the their DNA methylation patterns and age related DNA methylation changes tend to be tissue specific. In his article, he demonstrated that estimated age, also referred to as DNA methylation age, has the following properties: it is close to zero for embryonic and induced pluripotent stem cells, it correlates with cell passage number; it gives rise to a highly heritable measure of age acceleration; and it is applicable to chimpanzees.[4] Since the Horvath clock allows one to contrast the ...
Stimulation of Microbially-Mediated Arsenic Release in Bangladesh Aquifers by Young Carbon Indicated by Radiocarbon Analysis of Sedimentary Bacterial ...
M orphological changes of the articular surfaces of the innominate provides an excellent postcranial age indicators for adult remains. Variation in the face of the pubic symphysis, the anterior-most point of articulation between the two innominates in the pelvic girdle, is a common region analyzed for age determination. Todd (1920) outlined a 10-stage method for assessing this surface, based on a large sample of male innominates. Changes in the symphyseal surface over time proceed in a predictable pattern from a heavily contoured face, to one delimited by a rim in the mid 30s, to a surface marked by increasing porosity after 40 years. Analysis by Meindl and coworkers (1985) has shown the Todd method to be the most accurate of the pubic symphyseal methods available. It should be noted however, that a tendency to over-age individuals has been found after age 40 by some (BROOKS, 1955), while others claim under-aging of the 45+ year old individuals is problematic (Aiello and Molleson, 1993 ...
General Information Name: Bisceglie 1. Synonym Name(s):. First Description:. Repository: Istituto Italiano di Paleontologia Umana. Property Status:. Copyright Holder(s):. Curator(s):. Cultural Attribution: Middle Palaeolithic: Mousterian. Geochronological Attribution: OIS3. Taxon / Sex / Age Group Taxon: Neanderthal. Sex: Undefined. Age Group: adult (20y or more). Morphometrics Pathology / Preservation Pathology:. Pathology Bibliography:. Preserved Skeletal Party: postcranial fragment femur. Laterality: right. Polarity: proximal. Preservation: fragmentary. Preservation Details: Diaphyseal shaft including the lesser trochanter and a portion of the neck.. Human Activity:. Carnivore Activity:. Age Determination Dating Abstract:. Dating Association: Relative Dating. Dating Analysis:. ...
The SPSG Scientific Laboratory investigates the material characteristics of art objects to gain information necessary for their preservation, care, and art historical interpretation. Its interdisciplinary work spans the areas of science, art history, and conservation. All types of art objects from the Prussian royal palaces are examined in the laboratory, which analyzes materials and the effects of aging and damage; carries out (approximate) age determinations; and performs technological studies, with the findings going toward developing appropriate methods of conservation and restoration. Staff at the laboratory also address art historical issues, for example, clarifying provenance and authenticity and doing detailed research on the working techniques of individual artists. The laboratory specializes in analyzing the pigments and dyes in paintings, graphics, painted objects, and textiles, and does related historical and technological research of the materials used - particularly in Prussia. ...
Dear Guys, During the last several years i detected unknown truth talking about Lithuanian boulders- the Carboniferous and Permian marine rocks are very numerous and their age is various- there can be found almost each stage of Carboniferous and Permian. The main rock types are three- dolomite and limestone with masses of brachiopods that is various in color, stromatolite limestone with mollusks and unidentified cephalon like fossils, and the last- lacustrine limestone with coelacanth scales and possible plant remains (Carboniferous rhabdodermatids are very numerous). Carboniferous period and Early- Middle Permian was not known in Lithuanian glacial boulders so I very need the strong expert, especially who works on Carboniferous- Permian brachiopods. If my age determinations are correct then I will write the scientific book about this discovery and i think there is huge possibility that many of these boulders could be transported by someone glaciation from Northwestern Russia (or Northern Ural) ...
Morphological changes of the articular surfaces of the innominate provides an excellent postcranial age indicators for adult remains. Variation in the face of the pubic symphysis, the anterior-most point of articulation between the two innominates in the pelvic girdle, is a common region analyzed for age determination. Todd (1920) outlined a 10-stage method for assessing this surface, based on a large sample of male innominates. Changes in the symphyseal surface over time proceed in a predictable pattern from a heavily contoured face, to one delimited by a rim in the mid 30s, to a surface marked by increasing porosity after 40 years. Analysis by Meindl and coworkers (1985) has shown the Todd method to be the most accurate of the pubic symphyseal methods available. It should be noted however, that a tendency to over-age individuals has been found after age 40 by some (BROOKS, 1955), while others claim under-aging of the 45+ year old individuals is problematic (Aiello and Molleson, 1993 ...
Andrews, A. H., Coale, K. H., Nowicki, J. L., Lundstrom, C., Palacz, Z., Burton, E. J., & Cailliet, G. M. (1999). Application of an ion-exchange separation technique and thermal ionization mass spectrometry to 226Ra for radiometric age determination of long-lived fishes. Canadian Journal of Fisheries and Aquatic Sciences, 56(8), 1329-1338 ...
The much-anticipated Armenian Youth Federation Alumni Reunion, which will celebrate the organizations 85th anniversary, is returning on Saturday, March 10, 2018 at Montebellos Baghramian Hall. Headlining entertainers for the evening include Onnik Dinkjian, John Berberian, Hachig Kazarian, Ara Dinkjian, and George Bilezekjian.. The hosting AYF Montebello Vahan Cardashian Chapter has begun phone banking AYF Alumni to save the date for this much anticipated event, which boasts nearly 1,000 attendees spanning the international network of the AYF and the broader Armenian community.. We are coordinating with people from across California and even the nation to bring together as many people as possible. This is an event thats open to anybody in the community, from current AYF members and alumni, to friends and family, said Harutyun Demirjian, a member of AYF Montebello executive. Demirjian is spearheading the AYF Alumni Reunion committee, which is made up of AYF Montebello members and alumni to ...
The age structure of populations is an important and often unresolved factor in ecology and wildlife management. Parameters like onset of reproduction and senescence, reproductive success and survival rate are tightly correlated with age. Unfortunately, age information of wild animals is not easy to obtain, especially for birds, where few anatomical markers of age exist. Longitudinal age data from birds banded as chicks are rare, particularly in long lived species. Age estimation in such species would be extremely useful as their long life span typically indicates slow population growth and potentially the need for protection and conservation. Telomere length change has been suggested as a universal marker for ageing vertebrates and potentially other animals. This method, termed molecular ageing, is based on a shortening of telomeres with each cell division. In birds, the telomere length of erythrocytes has been reported to decline with age, as the founder cells (haematopoietic stem cells) ...
New research compared different ways to place children in athletics by assessing biological age, rather than simply going by chronological age.
Cathy Troisi (used as an example of slowpoke success in RC 647): My motto is, I may be slow, but I am really good at it. But I am NOT slow to defend the back of the pack. I take exception to Gabriel Shermans verbal attack [in Slate.com], not so much for myself but for those who are even farther behind me. Id guess he is young, in chronological age and obviously in attitude. If we assume his mental, emotional, social, psychological age will advance with his chronological age, we can hope that he too will grow up. At which time he might be grateful for those of us who made him look good way back when ...
Golf And Age:. The vast majority of golfers experience a significant loss in club head speed and distance as they age. Its a complaint I have heard from pretty much every golfer I have trained who is into their 50s, and certainly 60s. Golf score, and either directly or indirectly, level of enjoyment from the game starts to decline as this speed reduction occurs. Lets make one point very clear. Its not your chronological age that is primarily responsible for the decline in distance, it is your drop in strength and speed/power. There is a huge difference, because chronological age cannot be changed, but strength, power and speed levels most certainly can….at any age.. Why Does Speed Drop Off With Age?. By understanding the mechanisms that underlie this drop off in power it becomes much easier to try and apply appropriate training interventions.. 1 Decrease In Muscle Activity / Neural Drive:. To carry out a movement, our Central Nervous System (CNS) must activate motor units (MUs). Motor ...
Women live longer than men. Individuals can appear or feel years younger - or older - than their chronological age. Diseases can affect our aging process. When it comes to biology, our clocks clearly tick differently.
Theres chronological age and performance age and both may not be the same. So what is age? Some maintain age is a physical state, others believe it has
Part of the Hallmarks of Aging series. Did you know you have two different ages? The obvious one is chronological age, or the number of years since yo.... ...
by Laurie J. Stuart, A thesis presented to the faculty of Moss Landing Marine Laboratories., Thesis (M.S.) -- San Jose State University, 1980.. ...
Age estimation from tooth - coronal index (TCI) using dental radiographs based on reduction in the size of the dental pulp cavity with advancing age as a result of secondary dentin deposition, has been presented.
This study was carried out in the eastern Transvaal Lowveld in an area 2 with a giraffe population density of 2,6 per km . Lions are the only predators and it was estimated that 48% of the calves die in their first year. The sex ratio departs significantly from unity in favour of females. Plant fragments in the rumen were identified. Giraffe subsist on the leaves of trees and shrubs, though fruit, flowers, twigs and grass were also utilised. Marked seasonal changes in the plant species selected were determined by availability and different habitats were utilised accordingly. Chemical analysis of rumen content showed correlations of nutritional value with species eaten and seasonal phenological changes of the vegetation. Tooth eruption, wear and incremental layers in the cementum were found to be suitable criteria for age determination. Total body mass was measured and carcasses dressed out at 61,9% for males and 56,6% for females. Lower mass and lower proportion of fat was found in the dry ...
Fetal intra-uterine growth charts are generally based on last menstrual period (LMP) data. Such charts may not really be applicable to infants whose gestational age is ultrasonically determined in early pregnancy. 1369 consecutive singleton pregnancies were studied. All fetuses had their gestational age estimated both by ultrasonic measurement of fetal crown-rump length and from registered last menstrual period data. All infants were weighed at birth as a part of the routine care. The age determination according to the two methods differed in 664 out of 1369 cases and in 516 of these 664 cases the age according to LMP was higher than according to CRL - a highly significant difference (p , 0.001). Mean values for birth weight were found to be larger when correlated to age in terms of CRL determinations than when related to age as calculated from LMP data. Birth weight also showed a significant increase between 40 and 42 weeks when age was determined ultrasonically. This was not the case when age ...
The sub-tropical marginal reefs of Moreton Bay were characterized by diverse mid-Holocene communities that dramatically declined in the absence of major anthropogenic disturbance. We examined the nature and timing of changes in surficial coral death assemblages from Moreton Bay reefs to gain insight to the interplay of local and global changes. Corals were selected throughout the Bay across a depth range from 1 m above high tide to 5 m below low tide. Uranium-series age determinations (n=57) were made by Uranium-series thermal ionization mass spectrometry. The oldest sample was found atop in situ reef accretions at the highest elevation sampled, so Moreton bay reefs initiated before 6.82 ka and sea level must have reached its Holocene maximum prior to that time. Since the oldest cohort of corals was not buried by younger ones we conclude that coral accretion since 5.5 ka has been minimal. Coral accretion occurred in discrete episodes rather than continuously, and depths of accretion, corrected ...
First online: 10 May 2016. LINK. The identification of alkali-rich components in extraterrestrial materials along with their separation from other constituents is indispensable for subsequent cosmochemical and isotopic studies. This paper presents a simple pre-screening method for such materials by autoradiography using imaging plates (IPs), which is applicable to identification of mm-sized samples containing ca. 30 µg of potassium in the Yamato-74442 chondrite. The detection limit of IPs was ~1 mBq of 40K under 49 days exposure. The method provides an opportunity to screen meteorite materials non-destructively and to inexpensively check potassium-rich areas and are suitable for the 40K-40Ca and 40K-40Ar (39Ar-40Ar) age determinations.. ...
Larval sea scallops (Placopecten magellanicus) were reared in the laboratory and their shell growth lines were Counted and used to estimate age in days. The first growth line was deposited 3 to 4 days after fertilization. Age estimates from growth-line counts were strongly correlated with the actual ages of the larvae. Photoperiod had no detectable effect on the rate of growth-line deposition.. Language - ...
Come out to the new Demirjian Park on the U of I campus to cheer on the Illini womens soccer team! Admission is FREE.. Honoring University of Illinois Professors & Staff Members. ...
Osteoderms are common in most archosauriform lineages, including basal forms, such as doswelliids and proterochampsids. In this survey, osteoderms of the doswelliids Doswellia kaltenbachi and Vancleavea campi, and proterochampsid Chanaresuchus bonapartei are examined to infer their palaeobiology, such as histogenesis, age estimation at death, development of external sculpturing, and palaeoecology. Doswelliid osteoderms have a trilaminar structure: two cortices of compact bone (external and basal) that enclose an internal core of cancellous bone. In contrast, Chanaresuchus bonapartei osteoderms are composed of entirely compact bone. The external ornamentation of Doswellia kaltenbachi is primarily formed and maintained by preferential bone growth. Conversely, a complex pattern of resorption and redeposition process is inferred in Archeopelta arborensis and Tarjadia ruthae. Vancleavea campi exhibits the highest degree of variation among doswelliids in its histogenesis (metaplasia), density and ...
Classification of face images can be done in various ways. This research uses two-dimensional photographs of peoples faces to detect children in images. Algorithm for classification of images into children and adults is developed and existing algorithms are analysed. This algorithm will also be used for age estimation. Through analysis of the state of the art researchon facial landmarks for age estimationand combination with changes that occur in human face morphology during growth and aging, facial landmarks needed for age classification and estimation of humans are identified. Algorithm is based on ratios of Euclidean distances between those landmarks. Based on these ratios, children can be detected and age can be estimated ...
Age estimation was strongly correlated with oestradiol concentrations: age was overestimated when levels were low and underestimated when high...
The postnatal gestational age estimation model previously published by our group included 249 700 infants born between April 2007 and March 2009. The details of the original model have been described previously.9 Briefly, infants who were identified as positive for any disorder screened for by NSO were excluded, as were infants with unsatisfactory samples, and missing gestational age and birth weight. Because complete metabolite profiles were required to score new observations, infants with missing analyte data or other covariates including gestational age, were excluded from this validation exercise. The infants excluded due to missing covariates constituted ,5% of the cohort. Gestational age was based on best obstetrical estimate (last menstrual period, dating ultrasound or a combination). It is to be noted that ,99% of women in Ontario receive at least one ultrasound during the course of pregnancy.10 The data were randomly partitioned into model development (50%), validation (25%) and test ...
Ankylosing spondylitis (AS) is a type of arthritis that affects the spine. Ankylosing means stiff or rigid, spondyl means spine, and itis refers to inflammation. The disease causes inflammation of the spine and large joints, resulting in stiffness and pain. The disease may result in erosion at the joint between the spine and the hip bone (the sacroiliac joint), and the formation of bony bridges between vertebrae in the spine, fusing those bones. In addition, bones in the chest may fuse. The cause of AS is unknown, although researchers suspect genetics play a role. A gene called HLA-B27 occurs in over 95 percent of those with AS. However, some people with the HLA-B27 gene do not have AS.. ...
Ankylosing spondylitis (AS) is a type of arthritis that affects the spine. Ankylosing means stiff or rigid, spondyl means spine, and itis refers to inflammation. The disease causes inflammation of the spine and large joints, resulting in stiffness and pain. The disease may result in erosion at the joint between the spine and the hip bone. This is called the sacroiliac joint. It may also cause bony bridges to form between vertebrae in the spine, fusing those bones. Bones in the chest may also fuse.. ...
Age assessment in infant crab-eating monkeys (Macaca fascicularis) based on tooth development (pages 247-252). J. M. Ostyn, J. C. Maltha and F. P. G. M. van der Linden. Version of Record online: 14 MAY 2009 , DOI: 10.1111/j.1469-7998.1995.tb05141.x. ...
Neuro-anesthetic contri- bution to the impedance of complications caused nearby perfunctory cerebral retraction: concept of a chemical thought retractorAge-at-death diagnosis and firmness of life-history param- eters past incremental lines in vulnerable dental cementum as an fingering helpDispensation of N2 O alone or adding it to a fentanyl-midazolam anes- thetic ,,05] or a propofol-remifentanil anesthetic did not interchange the BIS in rhyme study ,,06]If epidemiological statistics put up with inferences about clinical data, 2029 3039 4049 5059 Grow older 0 5 10 15 20 25 30 35 40 45 Men Women Ubiquity(%) 6069 ,70 REPRESENTATION 5.1 Age-specific ubiquitousness of metabolic syndrome ,a href=http://eiendomnorge.no/wp-content/notations/c/purchase-fluoxetine-online-no-rx/,purchase fluoxetine 10mg with visa,/a,. The convert an eye to developing engagement amelioration plans in the direction of each core program involves realization of an corroboration reassessment hardened to notify the phenomenon ...
The care of Paediatric teeth begins as soon as your child has developed baby teeth. We provide the guidance and treatment for childrens dental development.
Have you ever wondered, what is your physiological age? Is it more or less than your chronological age? Physiological age determines a persons health condition. Are we able to determine physiological age? You would think the answer is NO. but it can be done by determining telomeres length.
Our senior fitness clients chronological age may not reflect their fitness age. Here are some ways to gauge your older clients true fitness age.
Cattle age determination • Cemento-osseous dysplasia • Cementoblast • Cementoblastoma • Cementoenamel junction • Cementogenesis ... Tooth-friendly • Tooth abscess • Tooth bleaching • Tooth brushing • Tooth development • Tooth enamel • Tooth eruption • Tooth ... fusion • Tooth gemination • Tooth loss • Tooth painting • Tooth polishing • Tooth regeneration • Tooth squeeze • Tooth Tunes • ... Dental pertains to the teeth, including dentistry. Topics related to the dentistry, the human mouth and teeth include: Contents ...
Lee, P. C.; Sayialel, S.; Lindsay, W. K.; Moss, C. J. (2012). "African elephant age determination from teeth: validation from ... are worn by the age of one year and lost by the age of about 2.5 years. The second molars start protruding at the age of about ... long and are lost by the age of 8-10 years. The fourth molars show by the age of 6-7 years, grow to a size of 6.8 cm (2.7 in) ... occurring in males around the age of 40 and females around the age of 25. The trunk is a prehensile elongation of the upper lip ...
Fundamentals of sample age determination from its amino acid racemization by Policarp Hortolà Brown 1985 Amino Acid Dating. ... in the dentine of fossil and modern bear teeth". International Journal of Chemical Kinetics. 35 (11): 576. doi:10.1002/kin. ... and allows the determination of age of living animals. Amino acid racemization also has a role in tissue and protein ... of the age; at -10°C the reaction has a maximum age of ~10 m.y., and a correspondingly coarser resolution. Strong acidity and ...
Bekaert B, Kamalandua A, Zapico SC, Van de Voorde W, Decorte R (2015). "Improved age determination of blood and teeth samples ... An age model using dentin from teeth is currently being studied. Over 300 genes have been found that are a part of ... The age guess for over 700 samples had a mean absolute deviation from chronological age (MAD) of 11.4 years. Two years later, ... Jones MJ, Goodman SJ, Kobor MS (December 2015). "DNA methylation and healthy human aging". review. Aging Cell. 14 (6): 924-32. ...
The determination of the age of children, under the age of 21, is usually performed by examining the teeth. When teeth are not ... On average, male teeth are slightly larger than female teeth, with the greatest difference observed in the canine teeth. ... The determination of an individual's age by anthropologists depends on whether or not the individual was an adult or a child. ... "Skeletons are good age markers because teeth and bones mature at fairly predictable rates" (PDF). Smithsonian National Museum ...
Brown, W. (1988). Age determination of the West African buffalo Syncerus caffer brachyceros and the constancy of tooth wear. ... Two types of bachelor herds occur: ones made of males aged four to seven years and those of males 12 years or older. During the ... Males have a linear dominance hierarchy based on age and size. Since a buffalo is safer when a herd is larger, dominant bulls ... Savannah-type buffaloes have black or dark brown coats with age. Old bulls often have whitish circles around their eyes and on ...
Around that age, femoral rings cease to form. Further research on age determination methods for tuatara is required, as tuatara ... This specific tooth arrangement is not seen in any other reptile; although most snakes have a double row of teeth in their ... The teeth are not replaced. As their teeth wear down, older tuatara have to switch to softer prey such as earthworms, larvae, ... Phalangeal hematoxylinophilic rings can be used for tuatara up to 12-14 years of age, as they cease to form around this age. ...
Brown, W. (1988). Age determination of the West African buffalo Syncerus caffer brachyceros and the constancy of tooth wear. ... Males have a linear dominance hierarchy based on age and size. Since a buffalo is safer when a herd is larger, dominant bulls ... Cows first calve at five years of age, after a gestation period of 11.5 months. Newborn calves remain hidden in vegetation for ... Savannah-type buffaloes have black or dark brown coats with age. Old bulls often have whitish circles around their eyes and on ...
Age determination of mammals from annual layers in teeth and bones] (in Russian). Translated by Salkind, F. Jerusalem: Israel ... Like Sinovenator, however, teeth towards the back of the mouth have small serrations on their rear edges. The four premaxillary ... There are at least 21 tooth positions in the upper jaw and 24 in the lower; the latter is less than Sinovenator (27) and other ... ISBN 978-0-253-35721-2. Barrett, P.M.; Wang, X.-L. (2007). "Basal titanosauriform (Dinosauria, Sauropoda) teeth from the Lower ...
"Using a novel absolute ontogenetic age determination technique to calculate the timing of tooth eruption in the saber-toothed ... After Smilodon turned around 20 months of age, the infant teeth were shed while the adult canines grew at an average growth ... Smilodon started developing its adult saber-teeth when the animal turned one-and-a-half years of age, shortly after the ... "tooth". This has also been translated as "tooth shaped like double-edged knife". He explained the species name populator as " ...
Examination of his teeth indicated he died around age 35,[164] but this method of age determination is now believed to be ... the upper teeth fall into the gaps between the lower teeth when the mouth is closed. The firm middle and back teeth hold prey ... Males sexually mature at the age of 15, but do not typically reproduce until age 21. Wild males live around 29 years on average ... Age determination of toothed whales and sirenians, pp. 143-154 Rep. Int. Whal. Comm. (Special Issue 3), cited in Know the ...
Its teeth were sharp but strong and large, as well as being less numerous than the ones in Dyrosaurus phosphaticus. Like other ... The age of this animal is therefore Thanetian (late Palaeocene). Arambourgisuchus khourbgaensis is a member of the Dyrosauridae ... 2005), it is probably one of the most derived forms, but the lack of better material makes a correct determination of its ... posterior part of mandibular symphysis with five or six teeth alveoli on each side OCP DEK-GE 1200: Anteriormost portion of a ...
Determination of which of these two alternatives is correct must await the recovery of teeth from other positions. Most of this ... It lived during the end of the Mesozoic, also known as the "age of the dinosaurs". It was a member of the extinct order of ... The species is based on a reassessment of a couple of Kimbetohia teeth, but not the entire species or genus. The assignment of ... Fossils have been found in the Lance Formation of Wyoming (United States). They age from the Maastrichtian division of the ...
Examination of his teeth indicated he died around age 35, but this method of age determination is now believed to be inaccurate ... the upper teeth fall into the gaps between the lower teeth when the mouth is closed. The firm middle and back teeth hold prey ... Males sexually mature at the age of 15, but do not typically reproduce until age 21. Wild males live around 29 years on average ... Females can often breed until age 40, followed by a rapid decrease in fertility. Orcas are among the few animals that undergo ...
Examination of his teeth indicated he died around age 35, but this method of age determination is now believed to be inaccurate ... Problems in Age Determination. International Conference on Determining Age of Odontocete Cetaceans (and Sirenians). La Jolla: ... Age determination of toothed whales and sirenians, pp. 143-154 Rep. Int. Whal. Comm. (Special Issue 3), cited in Know the ... Old Tom measured 22 feet (6.7 m) and weighed 6 tons, with a 3.33 feet (1 m) skull and teeth about 5.31 inches (13.4 cm) long. ...
He started fishing at age 5 and began tournament fishing at age 15. He refuses to use special equipment, wanting to cast with ... He ties knots with his tongue and unhooks fish with his teeth. Dyer fishes on the Bassmaster Open Series. He has fished in more ... His motto for life is "If I can, you can." Dyer's physical limitations have not dampened his determination and positive spirit ...
... differences in tooth and jaw structure among troodontids and saurornithoidids were based on age and position of the tooth in ... Age determination studies performed on the Two Medicine troodont using growth ring counts suggest that this dinosaur reached ... of each tooth. The teeth show wear facets on their sides. Holtz (1998) also noted that characteristics used to support a ... Tooth-marked small theropod bone: An extremely rare trace. p. 58-63. In: Mesozoic Vertebrate Life. Ed.s Tanke, D. H., Carpenter ...
Pretty IA, Sweet D (April 2001). "A look at forensic dentistry--Part 1: The role of teeth in the determination of human ... Sanders R (2018-04-23). "Did last ice age affect breast feeding in Native Americans?". Berkeley News. Retrieved 2018-11-07. ... "The fossil teeth of the Peking Man". "Beyond shovel-shaped incisors: Neandertal dental morphology". Bailey S (October 2006). " ... The morphology of Neanderthal's anterior teeth has been seen as an adaptation to the heavy use of their canines and incisors in ...
Studying the Middle Ages Can Be Fun" and as having "not so much a naturally playful imagination as a teeth-gritted ... determination to appear wacky at all costs" The Independent - Despite "tiny traces of real history [remaining]" and "the odd ...
... age determination by teeth MeSH E01.370.350.700.720.700 - radiography, bitewing MeSH E01.370.350.700.720.720 - radiography, ... age determination by skeleton MeSH E01.370.350.700.060 - angiography MeSH E01.370.350.700.060.050 - angiocardiography MeSH ... blood volume determination MeSH E01.370.370.170 - capillary fragility MeSH E01.370.370.380 - heart function tests MeSH E01.370. ... blood pressure determination MeSH E01.370.600.115 - body constitution MeSH E01.370.600.115.100 - body weights and measures MeSH ...
... age determination by teeth MeSH E06.342.764.600 - radiography, bitewing MeSH E06.342.764.716 - radiography, dental, digital ... tooth extraction MeSH E06.645.700.680 - serial extraction MeSH E06.645.710 - tooth replantation MeSH E06.658.224 - mandibular ... tooth replantation MeSH E06.420.500 - enamel microabrasion MeSH E06.420.750 - tooth bleaching MeSH E06.520.200 - centric ... dental care for aged MeSH E06.170.152 - dental care for children MeSH E06.170.205 - dental care for chronically ill MeSH ...
13, Maryland Department of Research and Education, Solomons, Md.) Tooth impressions as an aid in the determination of age in ... At a young age, he decided that he wanted to become a biologist, perhaps even an entomologist or herpetologist. Flyger became a ... Natural Resources Institute, Issue 283 of Contribution (Chesapeake Biological Laboratory : 1961) Relationship of sex and age to ...
... based on age determination studies. Like other early sauropodomorphs, Ignavusaurus had a long, slender neck and tail. It ... although the shape and position of the teeth, among other factors, led Knoll to conclude that the remains belong to a ... Its fossils were found in the Upper Elliot Formation which is probably Hettangian in age (around 200 million years ago). It was ...
Thus two tooth cattle are marked on the wither, four tooth on the middle of the back and six tooth on their high bone (near ... The age of cattle is determined chiefly by examination of the teeth, and less perfectly by the horn rings or the length of the ... There is controversy on the reliability of attempting to tell the age of cattle by their teeth, as rate of wear can be affected ... The canine teeth are not pointed but look like incisors. The incisor teeth meet with the thick hard dental pad of the upper jaw ...
Dentition relates to the arrangement of teeth in the mouth, with the dental notation for the upper-jaw teeth using the upper- ... This study found that as the pups aged the mother shifted from high-energy care to lower-energy care so that they can care for ... Another study on free-ranging dogs found that social factors played a significant role in the determination of mating pairs. ... The mandibles of canids are buttressed behind the carnassial teeth to crack bones with their post-carnassial teeth (molars M2 ...
The Union troops engage in hand-to-hand combat in which the young Union soldier grits his teeth with determination and bayonets ... The Confederate soldier is a middle-aged farmer clearly in love with his life, land and animals. The Union soldier is a young ...
"India's cricketer's cricketer". The Age. 6 December 2003. Retrieved 26 February 2020. "India's cricketer's cricketer". The Age ... He received a hairline fracture of the skull from Richard Hadlee, was knocked unconscious by Imran Khan, had teeth knocked out ... Amarnath was noted for his personality, courage and determination. West Indian cricketing great Vivian Richards called him "one ... Gideon Haigh writing in The Age says: "In an era replete with fast bowling and unrestricted in use of the bouncer, he never ...
Bale, W. F. "Determination of hard radiation, including preparation of samples". U S Navy Medical Bulletin. 48: 100-103. PMID ... William F. Bale, X-RAY DIFFRACTION STUDIES OF THE STRUCTURE OF BONE AND TOOTH SUBSTANCE, University of Rochester, Ph.D. ... Rochester Alumni-Alumnae Review, (March 1957). Medical Project Helps Prepare U.S. for Atomic Age; Manhattan Project Contract ... UR-637 UR Rep, 86(), 1-22 R. W. Helmkamp, M. A. Contreras, W. F. Bale, THE DETERMINATION OF TOTAL IODINE IN I-131-IODIDE ...
The determination of sex is one of the first steps in identifying an individual. The physical differences between the standard ... The size of one's hand can suggest the possible age range of an individual. Ear prints can also be assessed in the process of ... The jaw is analysed to detect any peculiarities in the teeth or any diseases. In the scenario where skin prints are unable to ... However, when individuals age, particularly into their 60s and 70s, their skin is subject to sagging and thinning. The ...
As stated in the CMS website,[5] Medicare is a health insurance program for people age 65 or older, people under age 65 with ... Not only do social norms within the state affect its determination of AFDC payment levels, but regional norms will affect a ... restoration of teeth and maintenance for dental health. Early and Periodic Screening, Diagnostic and Treatment (EPSDT) is a ... a child under the age of 21 or a child of any age who is blind or disabled" and "the law also carved out other exceptions for ...
"Like Pulling Teeth" / "Hurts, Don't It!? Son Goku The Dentist". Transcription: "Chotto Itee Zo!? Gokū no Haisha" (Japanese: ちょっ ... 100 years later, all of the Z-warriors have passed away of old age except for Pan, Vegeta Jr., Vegeta's descendant, and Goku Jr ... " / "Ya' Data's Flawed!! Son Goku's True Determination". Transcription: "Dēta Nya Nai Ze!! Gokū no Chō-honki" (Japanese: データにゃな ... The giant starts howling in pain, and Goku figures out that the Dragon Ball has broken one of the giant's teeth and is stuck ...
McDaniel, Justin (2006). "Buddhism in Thailand: Negotiating the Modern Age". In Berkwitz, Stephen C. Buddhism in World Cultures ... resolute determination, loving-kindness and equanimity.[243] All of these can be practiced through the three practices of ... McDaniel, Justin (2006). "Buddhism in Thailand: Negotiating the Modern Age". In Berkwitz, Stephen C. Buddhism in World Cultures ... There are activities for children and young people: people of all ages attend activities. Moreover, the temple teaches ...
Franklin-Brown, Mary (2012). Reading the world : encyclopedic writing in the scholastic age. Chicago London: The University of ... When a crocodilian is concerned about its safety, it will gape to expose the teeth and yellow tongue. If this doesn't work, the ... Some reptiles exhibit temperature-dependent sex determination (TDSD), in which the incubation temperature determines whether a ... Many species also possess canine-like teeth. These are used primarily for seizing prey, but are also used in fighting and ...
... a new method for the determination of adult skeletal age at death". American Journal of Physical Anthropology. 68: 15-28. doi: ... Hypoplasias on this part of the tooth do not show on the surface of the tooth. Because of this buried enamel, teeth record ... The estimation of age in bioarchaeology and osteology actually refers to an approximation of skeletal or biological age-at- ... Dental caries, commonly referred to as cavities or tooth decay, are caused by localized destruction of tooth enamel, as a ...
1.03 x Age) cmH2O, where age is in years.[27] ... The teeth go between the nubs and the shield, and the lips go ... Forced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort. ... It is considered normal if it is 60% to 140% of the average value in the population for any person of similar age, sex and body ... In healthy adults this should be approximately 70-85% (declining with age).[12] In obstructive diseases (asthma, COPD, chronic ...
Leslie, P. H., Perry, J. S., Watson, J. S., & ELTON, C. (February 1946). The Determination of the Median Body‐Weight at which ... The most commonly heard in domestic rats is bruxing, or teeth-grinding, which is most usually triggered by happiness, but can ... Boice, R. (1977). "Burrows of Wild and Albino Rats: Effects of Domestication, Outdoor Raising, Age, Experience, and Maternal ... However, as the rats age, the tendency to chirp appears to decline.[26] ...
Determination of anti-neutrophil cytoplasmic antibodies (ANCAs) can aid in the diagnosis, but positivity is not conclusive and ... Oral cavity: strawberry gingivitis, underlying bone destruction with loosening of teeth, non-specific ulcerations throughout ... age greater than 65 years, cardiac symptoms, gastrointestinal involvement, chronic kidney disease, and the absence of ears, ...
The giant anteater has no teeth and is capable of only very limited jaw movement. It relies on the rotation of the two halves ... Grooming peaks during the first three months and declines as the young reaches nine months of age, ending by ten months. The ... visual sex determination can be difficult. The penis and testes are located internally between the rectum and urinary bladder ... the character Antubis appears in the form of an anteater-like creature with razor-sharp teeth.[47] ...
Age determination. *Anguilliformity. *Bone *dermal. *intramembranous ossification. *Cleithrum. *Chromatophore. *Fins *dorsal ...
Four teenagers, aged 16 to 18, were killed by an Israeli airstrike in a sports stadium while they played soccer.[172][174][175] ... Furthermore, many Palestinian armed groups directly and indirectly indicated their determination to - and took responsibility ... having his jaw and teeth broken, and being hung for 45 days by his arms and legs.[251] ...
"Million-year-old mammoth genomes shatter record for oldest ancient DNA - Permafrost-preserved teeth, up to 1.6 million years ...
A platypus is born with teeth, but these drop out at a very early age, leaving the horny plates it uses to grind food.[66] ... a study found that the mechanism of sex determination is the AMH gene on the oldest Y chromosome.[79][80] A draft version of ... Judging by the tooth, the animal measured 1.3 meters long, making it the largest platypus on record.[75] ... Modern platypus young have three teeth in each of the maxillae (one premolar and two molars) and dentaries (three molars), ...
... they would blacken their teeth as a marking of their coming of age. Relatives and guardians of the bride who blackened their ... Watanabe thinks that it is a social ritual by which both society and a girl herself confirm the determination of matured women. ... Sometimes artificial teeth are used to achieve blackened teeth.. In Vietnam, tooth painting was practiced by the majority ... Ohaguro (お歯黒) is a custom of dyeing one's teeth black. It was most popular in Japan until the Meiji era. Tooth painting is also ...
Examination of his teeth indicated he died around age 35,[173] but this method of age determination is now believed to be ... the upper teeth fall into the gaps between the lower teeth when the mouth is closed. The firm middle and back teeth hold prey ... Males sexually mature at the age of 15, but do not typically reproduce until age 21. Wild males live around 29 years on average ... Age determination of toothed whales and sirenians, pp. 143-154 Rep. Int. Whal. Comm. (Special Issue 3), cited in Know the ...
Brown, Lester (2005). "3: Moving Up the Food Chain Efficiently.". Outgrowing the Earth: The Food Security Challenge in an Age ... "How Do Birds Eat If They Have No Teeth? , Blog , eNature". wild.enature.com. Archived from the original on 14 April 2016. ... However, one recent study demonstrated temperature-dependent sex determination among the Australian brushturkey, for which ... The arrangement and appearance of feathers on the body, called plumage, may vary within species by age, social status,[101] and ...
These teeth are sharp-cusped and similar in shape to those of piscivorous mammals, and unlike the teeth of contemporary mammals ... Zofia Kielan-Jaworowska, Richard L. Cifelli, and Zhe-Xi Luo, Mammals from the Age of Dinosaurs: Origins, Evolution, and ... Its teeth look adapted for eating fish: the first two molars had cusps in a straight row, which made them more suitable for ... "Olenekian Age of the Triassic - Palaeos". Archived from the original on 2007-04-16. Retrieved 2007-04-18.. ...
Their mouths protrude like forceps, and are equipped with fine teeth that allow them to nip off such exposed body parts of ... Diet varies with age, location and the prevalent prey items locally.[24] ... Barracuda are ferocious predators on other fishes, with razor-sharp conical teeth which make it easy for them to rip their prey ... Some bottom feeding rays and sharks with crushing teeth feed on them, as does the Stokes' seasnake[42] ...
Grant, Edward (1996). The Foundations of Modern Science in the Middle Ages: Their Religious, Institutional, and Intellectual ... I. Bernard Cohen, "Roemer and the First Determination of the Velocity of Light (1676)", Isis, 31 (1940): 327-379, see pp. 332- ... three fingers and a tooth were removed from his remains.[102] One of these fingers, the middle finger from Galileo's right hand ... Walusinsky, G. (1964) [1958]. "The Golden age of Observational Astronomy". In Taton, René (ed.). The Beginnings of Modern ...
Arnold, J. R.; Libby, W. F. (1949). "Age Determinations by Radiocarbon Content: Checks with Samples of Known Age". Science. 110 ... Spalding KL, Buchholz BA, Bergman LE, Druid H, Frisen J (2005-09-15). "Forensics: age written in teeth by nuclear tests". ... with tree ring or cave-deposit carbon-14 levels of a known age, then gives the wood or animal sample age-since-formation. ... "Radiation in Teeth Can Help Date, ID Bodies, Experts Say". National Geographic News. 2005-09-22. Archived from the original on ...
See also: Shark tooth and Animal tooth development. Jaws provide a platform in most fishes for simple pointed teeth. Lungfish ... Age determination. *Anguilliformity. *Bone *dermal. *intramembranous ossification. *Cleithrum. *Chromatophore. *Fins *dorsal ... and replace teeth as they wear by moving new teeth laterally from the medial jaw surface in a conveyor-belt fashion. Teeth are ... Carp and loach have pharyngeal teeth only. Sea horses, pipefish and adult sturgeon have no teeth of any type. In fish, Hox gene ...
A common error, totally unfounded, is that the number of spots on the insect's back indicates its age.[14][15] In fact, the ... Determination of specialisation need not be a trivial matter, though; for example the larva of the Vedalia ladybird Rodolia ...
about 4.5 billion years: see Age of the Earth. *↑ Dalrymple G. Brent 2004. Ancient Earth and ancient skies: the age of the ... Because grass wears teeth out, horses with longer-lasting teeth had an advantage. ... 2003). "First-year Wilkinson microwave anisotropy probe (WMAP) observations: determination of cosmological parameters". The ... Stephen Jay Gould, Evolution as fact and theory from Hen's teeth and horse's toes, New York: Norton 1994, pp253-262. ...
This was the age of pseudo-pageantry: the visit of King George IV to Scotland organised by Sir Walter Scott. Scott, very much a ... One of the first to recognise this "lack of teeth" was the poet Hugh MacDiarmid. MacDiarmid, both a nationalist and a socialist ... self-determination for the Scottish people and the restoration of Scotland to the Scottish people), the Unionists received 32 ... The late Middle Ages has often been seen as the era in which Scottish national identity was initially forged, in opposition to ...
At the age of 20, Jinnah began his practice in Bombay, the only Muslim barrister in the city.[12] English had become his ... armed to the teeth with dialectics, and insistent on the whole of his scheme".[64] ... had the right to self-determination. Leaders of the Congress were more vocal; Jawaharlal Nehru referred to Lahore as "Jinnah's ... Jinnah died at age 71 in September 1948, just over a year after Pakistan gained independence from the United Kingdom. He left a ...
Smoking has been proven to be an important factor in the staining of teeth.[83][84] Halitosis or bad breath is common among ... The risk of dying from lung cancer before age 85 is 22.1% for a male smoker and 11.9% for a female smoker, in the absence of ... Kataoka H, Sumida A, Makita M (1997). "Determination of aliphatic and aromatic aldehydes in cigarette smoke by gas ... Long-term effects include bad breath, yellowed teeth, and an increased risk of oral cancer.[citation needed] ...
Teeth (causing Barodontalgia, i.e., barometric pressure related dental pain,[12][13][14][15][16] or dental fractures[17][18][19 ... Therapeutic recompression is indicated for severe AGE. The diving medical practitioner will need to know the vital signs and ... Arterial blood gas (ABG) determination. Imaging:[30] *Chest radiography can show pneumothorax, and is indicated if there is ... Barodontalgia - Tooth pain caused by ambient pressure change. * Diving hazards and precautions - List of the hazards to which ...
To find the perpetrator, DNA samples from the entire male population, more than 4,000 aged from 17 to 34, of the town were ... Forensic entomology deals with the examination of insects in, on and around human remains to assist in determination of time or ... 40, "RepliSet: High Resolution Impressions of the Teeth of Human Ancestors".. *. Haag, Michael G.; Haag, Lucien C. (2011). ... He used analytical chemistry for blood residue analysis as well as toxicology examination and determination for poisons. He ...
Reindeer antlers, ulnas, ribs, tibias and teeth were utilised in addition to a rare documented case of a phalanx.[22] Mammoth ... Pringle, H (1997). "Ice Age Communities May Be Earliest Known Net Hunters". Science. 277 (5330): 1203-1204. doi:10.1126/science ... New AMS determinations for Maisières-Canal, Belgium". Antiquity. 84 (323): 26-40. doi:10.1017/S0003598X00099749.. .mw-parser- ... The main factors were the animal's age and size. For example, first year deer offered hides most suitable for clothing, while ...
The rostral teeth (near the tip) are longest and descend slightly in size towards the rear. Dames (1884) described the tooth ... it was many elements of the forearm preservation that allowed Ostrom to make the Archaeopteryx determination. For example, the ... wherein he expressed some doubt of its exact age and affinity. In his original description von Meyer mentioned neither the ... Dentition analysis of the specimen shows twelve teeth on each half of the upper tooth row, likely four in the premaxillary and ...
... this study calculates absolute ontogenetic age ranges of tooth development and eruption in S. fatalis. The timing of tooth ... This technique for absolute ontogenetic age determination can be replicated in other ancient species, including non-saber- ... Based on these developmental age calculations, S. fatalis individuals less than 4 to 7 months of age were not typically ... such as a tooth, and that growth period overlaps with the development of the other features under investigation. ...
Thus two tooth cattle are marked on the wither, four tooth on the middle of the back and six tooth on their high bone (near ... The age of cattle is determined chiefly by examination of the teeth, and less perfectly by the horn rings or the length of the ... There is controversy on the reliability of attempting to tell the age of cattle by their teeth, as rate of wear can be affected ... The canine teeth are not pointed but look like incisors. The incisor teeth meet with the thick hard dental pad of the upper jaw ...
In this study, we aimed to confirm the eruption age of mandibular posterior teeth for the accurate age determination of water ... In this study, we aimed to confirm the eruption age of mandibular posterior teeth for the accurate age determination of water ... In this study, we aimed to confirm the eruption age of mandibular posterior teeth for the accurate age determination of water ... In this study, we aimed to confirm the eruption age of mandibular posterior teeth for the accurate age determination of water ...
Tooth Decay Tooth Discoloration Teeth Chart Dental Check-Up Root Canal Treatment Toothache Quiz on Dental Care Dental Care ... Tooth Decay. Tooth decay in toddlers, children and adults, also called dental caries, is a bacterial infection causing ... Tooth Discoloration. Tooth discoloration or staining is caused commonly due to smoking, some medicines and poor dental hygiene. ... AERB Warns Against Dental X-Rays Solely for the Purpose of Age Determination. ...
Eruption of posterior teeth in the maxilla and mandible for age determination of water deer, doi: 10.1016/j.archoralbio.2016.10 ... Tooth Eruption/physiology* ; Tooth, Deciduous/diagnostic imaging ; Tooth, Deciduous/physiology. Keywords. Age determination ; ... In this study, we aimed to confirm the eruption age of mandibular posterior teeth for the accurate age determination of water ... YUHSpace: Eruption of posterior teeth in the maxilla and mandible for age determination of water deer. menu ...
Use of teeth for age determination of seals and other mammals. Popular science Lydersen & Gjertz 1988 - Canadian Journal of ...
Index: IMEMR (Eastern Mediterranean) Main subject: Tooth Calcification / Age Determination by Teeth / Gestational Age / Fetus ... Index: IMEMR (Eastern Mediterranean) Main subject: Tooth Calcification / Age Determination by Teeth / Gestational Age / Fetus ... radiological study of the deciduous teeth mineralization in the Egyptian fetus and its role in fetal age determination ... Mineralization was first detected at gestational age of 5 months in the incisor teeth. By the age of 6 months, first DM showed ...
Palavras-chave : Panoramic radiography; third molar; age determination by teeth. · resumo em Português · texto em Português · ... GUNDIM, Alyne de Carvalho et al. Third molars stage of mineralization and its relation to chronological age: Midwest Brazil ... The third molars development stage was analyzed based on the method described by Nolla and related with the chronological age ... The present study aim to analyze the relationship between the lower third molars development stage and the chronological age of ...
Gustafson G (1950) Age determination on teeth. J Am Dent Assoc 41(1):45-54CrossRefGoogle Scholar ... Once tooth development has been completed, degenerative tooth features can be assessed. A feature suitable for age diagnosis is ... Ge Z‑P, Yang P, Li G, Zhang J‑Z, Ma X‑C (2016) Age estimation based on pulp cavity/chamber volume of 13 types of tooth from ... For each stage the minimum age, the maximum age, the mean with standard deviation, the median and the lower and the upper ...
... except for upper canine teeth) of Pacific walruses that died or were harvested on the coast of the Chukchi Peninsula in 2005, ... age-related changes tooth size annual layer cement age determination pinnipeds walrus Odobenus rosmarus ... Krylov, V.I., Age determination, growth rate, and age population structure of the Pacific walrus, in Morskie mlekopitayushchie ... the tooth surface became rough, and knolls and rollers appeared there. As the age increased, external changes in teeth occurred ...
The biological age estimation of subadults is based on their tooth development43. For age estimation of the adult cranial ... Meindl, R. S. & Lovejoy, C. O. Ectocranial suture closure: A revised method for the determination of skeletal age at death ... Determinations of sex and age at death are based upon standard osteological methods. ... Violence and the History of Inequality from the Stone Age to the Twenty-First Century. (Princeton University Press, 2017). ...
Subjects: Age determination Domestic animals Horses Teeth * A travers le Canada en compagnie de lAssociation Britannique pour ... Age of the domestic animals : being a complete treatise on the dentition of the horse, ox, sheep, hog, and dog, and on the ... Dentition as indicative of the age of the animals of the farm. ... Tables for the determination of types and breeds of domestic ...
Teeth and Age Determination. Unsoundnesses. Gaits. Housing and Fencing for the Horse. Feeding Guidelines. Health Management. ... Effect of Season and Age of Hen on Egg Quality. Effect of Health and Nutrition of the Hen on Egg Quality. Shell Egg Handling ... Age and Weight. Influence of Sex and Sex Condition. Meatiness. Finish. Dressing Percent and Cutability. Grade. Byproducts. ... Aging and Tenderizing. Curing and Smoking. Specialty Meat Items. Meat Distribution Systems. Byproducts. Questions for Study and ...
Fundamentals of sample age determination from its amino acid racemization by Policarp Hortolà Brown 1985 Amino Acid Dating. ... in the dentine of fossil and modern bear teeth". International Journal of Chemical Kinetics. 35 (11): 576. doi:10.1002/kin. ... and allows the determination of age of living animals. Amino acid racemization also has a role in tissue and protein ... of the age; at -10°C the reaction has a maximum age of ~10 m.y., and a correspondingly coarser resolution. Strong acidity and ...
Cattle age determination • Cemento-osseous dysplasia • Cementoblast • Cementoblastoma • Cementoenamel junction • Cementogenesis ... Tooth-friendly • Tooth abscess • Tooth bleaching • Tooth brushing • Tooth development • Tooth enamel • Tooth eruption • Tooth ... fusion • Tooth gemination • Tooth loss • Tooth painting • Tooth polishing • Tooth regeneration • Tooth squeeze • Tooth Tunes • ... Dental pertains to the teeth, including dentistry. Topics related to the dentistry, the human mouth and teeth include: Contents ...
Wolfe, M.L. 1969: Age determination in moose from cemental layers of molar teeth.--Journal of Wildlfe Management 33(2): 428-431 ... Sergeant, D.W. & Pimlott, D.H. 1959: Age determination in moose from sectioned incisor teeth.--Journal of Wildlife Management ... Nest-survival model Model description S(calf age) Survival varies between age of calf S(year*calf age) Survival varies through ... due to the difficulty of aging moose without observing tooth wear (Peterson et al. 1983). Capture effort per age class was ...
1992 Determination of Skeletal Age and Sex. 1. 1 vols. Department of Anthropology, University of Pennsylvania, University Park ... Milner, G. R. and S. C. Larsen 1991 Teeth as Artifacts of Human Behavior : Intentional Mutilation and Accdental Modification. ... Hutchinson, D. L. and S. C. Larsen 1988 Determination of Stress Episode Duration from Linear Enamel Hypoplasias : A Case Study ... 3. Molleson, T. Trace Elements in Human Teeth, pp. 67-82. Montell, G. 1929 Dress & Ornaments in Ancient Peru; Archaeological & ...
telling the age of an animal by its teeth. Significant especially in horses, cattle and sheep. See also age determination. ... occlusal wear of a tooth, as a result of tooth to tooth contact as in mastication; physiological rather than pathological. ... may occur if the tooth pulp is traumatized, by osteoclastic action inside the tooth or outside, in the alveolar bone. ... the deciduous upper canine teeth erupt rostral to the lower canine teeth, thereby locking the mandible from further forward ...
Sex affects age determination and wear of molariform teeth in white-tailed deer. Van Deelen, Timothy R.; Hollis, Karmen M.; ...
Testosterone deficiency, or hypogonadism, is a common problem among men as they age. About 30 percent of // all males over age ... Who Suffer Knocked Out Teeth Each Year, With the Revolutionary New Design of Save-A-Tooth, Says Stephan Krasner, Pres.[0] ... Date:7/18/2019)... ... , ... Gateway Genomics , a leading developer of genomic tests that ... Fetal Sex Determination from ... Researchers studied the association between hypogonadism and depression in men age 45 and older. At a two-year follow-up, ...
The premolars and molars are commonly called "cheek-teeth" or "grinders" and have no importance in the determination of age. ... Views of a cows teeth and horses teeth. Note the longitudinal view revealing the composition of horse teeth and cross the ... Estimating the age of hogs by their teeth is not a common practice. In passing, however, the animals canines or "tusks" are ... The eruption of a dogs permanent teeth is highly variable and is not generally a good index of the animals age. The canine or ...
Charles, D, Condon, K, Cheverud, J & Buikstra, J. (1986) Cementum annulation and age determination in Homo sapiens. I. Tooth ... Condon, K, Charles, D, Cheverud, J & Buikstra, J. (1986) Cementum annulation and age determination in Homo sapiens. II. ... Relationship of age and body mass index to the expression of obesity and osteoarthritis related genes in human meniscus. ... Charles, D, Condon, K, Cheverud, J & Buikstra, J. (1989) Estimating age-at-death from growth layer groups in cementum, In: ...
What Comes First Flossing or Brushing Your Teeth?. 14 months ago. Brushing and flossing your teeth helps keep healthy gums and ... Recommended Water Intake by Age. 18 months ago. Water is essential for the body to work properly. Our bodies cannot retain ... My total lack of concern for improving myself mentally and physically was destroying my determination and enthusiasm. I ... But how much do we need to drink when we are young and then as we age? ...
... formation is a widely used age assessment method for adolescents and young adults. This systematic review examines evidence on ... Objectives Radiographic evaluation of the wisdom teeth (third molar) ... Age determination by teeth Molar, third Odontogenesis Adolescent Young adult Abbreviations. CA. Chronological age ... Moorrees CFA, Fanning EA, Hunt EE Jr (1963) Age variation of formation stages for ten permanent teeth. J Dent Res 42:1490-1502 ...
"We were inspired to use the eye lens from other age determination studies conducted on whales," he said. ... "For example, their age was unknown but expected to be great," he said, based on studies from more than 50 years ago. The ... To determine the age of Greenland sharks, Nielsen and his colleagues examined the eye lens nuclei of 28 females, caught during ... Though the age estimates cannot be proved - only the sharks know for sure - Nielsen said other evidence, including high levels ...
Determination of Age by Pulp Cavity/Tooth Width Ratio Using Dental Radiography in ... ... The purpose of this study was to identify the effect of age on the ratio of pulp cavity/tooth width (P/T ratio) in healthy cats ... Determination of age of a subject is one of the most important aspects of medico-legal cases and anthropological research. ... Age estimation using pulp/tooth area ratio in maxillary canines-A digital image analysis. ...
STUDY OF ERUPTION OF TEMPORARY TEETH FOR THE DETERMINATION OF AGE. Pragnesh Parmar, Gunvanti B. Rathod. International Journal ... DETERMINATION OF AGE BY STUDY OF SKULL SUTURES. Pragnesh Parmar, Gunvanti B. Rathod. International Journal of Current Research ... To Find the Prevalence of Obesity and Overweight among Children Having Mental Retardation in Age Group 5 To 15 Years in Dharwad ... A Study Of Prevalence Of Sexually Transmitted Infections & Factors Affecting It Among Married Women Of Reproductive Age Group ...
A method of preparing sperm whale teeth for age determination. Nature, London 210(5034):437-8. [ Links ]. ... Key words: Age determination; Continental Argentine coast; Sperm whale; Stranding.. Palabras clave: Cachalote; Costa ... ABSTRACT: We present a new record of sperm whale with notes on diet, age determination and a review of strandings along the ... Here we present a new record of a stranded sperm whale with notes on age determination, diet, parasites and a review of ...
One of Eadgyths teeth surrounded by synthetic material for preparation of a thin section for age determination Reinhard ... Teeth provide remarkable evidence about the early years of an individuals life. The region where a person grew up can be ... Some of the strontium in the soil gets into the meat and cereals produced from it and then into the teeth of the people who eat ... As tooth enamel is formed incrementally from the crown, a series of isotopes representing every year, every month - and ...
... after determination of height and weight for calculation of BMI. The relationship between BMI (after adjustment for age) and ... Age had a significant effect on dmft. In addition, dmft was higher in boys compared to girls. The results of the present study ... Relationship between Body Mass Index and Tooth Decay in a Population of 3-6-Year-Old Children in Iran. Leila Shafie Bafti,1 ... The aim of the present study was to evaluate the relationship between BMI and tooth decay in a population of Iranian children. ...
  • The first-called temporary, milk, or deciduous teeth-are replaced (at fairly predictable times) by permanent teeth as an animal grows older. (motherearthnews.com)
  • The children underwent examination of deciduous teeth (using the dmft index) after determination of height and weight for calculation of BMI. (hindawi.com)
  • The results of the present study showed that caries rate in the deciduous teeth of 3-6-year-old children decreases with an increase in body weight. (hindawi.com)
  • Tusks grow from deciduous teeth known as tushes that develop in the upper jaw and consist of a crown, root and pulpal cavity, which are completely formed soon after birth. (wikipedia.org)
  • We dwelt on the normal amount of teeth in the kitten/puppy and the adult cat/dog, and with the fact that the "milk" teeth (also called "baby" teeth or "deciduous" teeth) drop out at four-five months of age. (stabroeknews.com)
  • The cat has two sets of teeth during its lifetime.Twenty-six deciduous teeth (baby or milk) begin to "erupt" at about 21 days of age 1 . (pictures-of-cats.org)
  • While his observations regarding deciduous teeth seem not to have had great resonance since 1907 (or to have been thoroughly tested), delayed dental eruption in African insectivorans may be very significant. (biomedcentral.com)
  • local buds from the ledge give rise to the primordia of the enamel organs of the teeth. (thefreedictionary.com)
  • Congenital absence of dentine and enamel, as occurs in calves, causes the teeth to look pink because of their vascularity. (thefreedictionary.com)
  • Livestock also exhibit individual tooth structure-pulp, dentine, enamel, and cement-very much like our own. (motherearthnews.com)
  • In most cases, each tooth is divided into parts called the root (hidden in the gums) and the crown (exposed and covered with enamel). (motherearthnews.com)
  • The region where a person grew up can be traced in the tooth enamel laid down in their first 14 years because strontium and oxygen isotope ratios in the teeth reflect the food a person ate and the water they drank. (bristol.ac.uk)
  • The rainfall of the area is also echoed in tooth enamel. (bristol.ac.uk)
  • These different ratios are also preserved in their tooth enamel. (bristol.ac.uk)
  • As tooth enamel is formed incrementally from the crown, a series of isotopes representing every year, every month - and possibly even every week - of a person's life is laid down layer by layer in the enamel. (bristol.ac.uk)
  • Variable strontium ratios in the tooth enamel laid down in Eadgyth's early years indicated that, during this period, she lived in a number of different locations. (bristol.ac.uk)
  • This name refers to the lozenge-shaped enamel of the molar teeth, which differs significantly from the shape of the Asian elephant's molar enamel. (wikipedia.org)
  • Sex determination of human remains from peptides in tooth enamel. (dur.ac.uk)
  • Here we present a method for sex determination of human remains by means of a minimally destructive surface acid etching of tooth enamel and subsequent identification of sex chromosome-linked isoforms of amelogenin, an enamel-forming protein, by nanoflow liquid chromatography mass spectrometry. (dur.ac.uk)
  • Tooth enamel is the hardest tissue in the human body and survives burial exceptionally well, even when the rest of the skeleton or DNA in the organic fraction has decayed. (dur.ac.uk)
  • The radiocarbon technique determines the amount of 14C in tooth enamel. (innovations-report.com)
  • In the study, 44 teeth from 41 individuals were analyzed using racemization (a chemical process in which one amino acid is converted to its counterpart) analysis of tooth crown dentin or radiocarbon analysis of enamel, and 10 of these were split and subjected to both radiocarbon and racemization analysis. (innovations-report.com)
  • Scientists at the University of Brighton have discovered a new method of determining the sex of human remains - by testing tooth enamel. (brighton.ac.uk)
  • The new method is quicker, cheaper, and uses tooth enamel, the most durable human body tissue and the hardest tissue in the human body. (brighton.ac.uk)
  • They extracted peptides, or chains of amino acid molecules, from tooth enamel and with them they were able to identify sex chromosomes to determine if the teeth were from a male or female. (brighton.ac.uk)
  • Wear on incisors typically progresses beyond the lobes on the first 2 upper and lower incisors at 8 years of age, leaving approximately 5 mm of enamel. (wolfsongalaska.org)
  • The research, which was conducted by Dr Patrick Mahoney at the University's School of Anthropology and Conservation and published in the American Journal of Physical Anthropology, has established links between tooth eruption and enamel growth in human infants, concluding that milk teeth do not develop in the same way as adult permanent teeth. (scientistlive.com)
  • For the study, Dr Mahoney reconstructed incremental enamel development in a sample of modern human deciduous maxillary and mandibular anterior teeth and compared them to his previous research on molar teeth. (scientistlive.com)
  • Dr Mahoney expected the microscopic tooth enamel growth to be somehow linked into the sequence that teeth erupt through the gums. (scientistlive.com)
  • This can be accessed through the microscopic structures in tooth enamel. (scientistlive.com)
  • Today, let's look at the time when these "milk" teeth emerge ("erupt" is the technical term) from the gums. (stabroeknews.com)
  • They are fully grown by 5 to 6 weeks of age and the different types of teeth erupt at different times allowing age to be determined 4 (see below). (pictures-of-cats.org)
  • If not, then the permanent teeth are pushed out of alignment when they erupt causing a bad bite. (pictures-of-cats.org)
  • stage during which the first few permanent teeth erupt. (loris-conservation.org)
  • Objective Eruption of posterior teeth, including premolars and molars in the mandible rather than in the maxilla, is accepted as an accurate reference for age determination of deer. (elsevier.com)
  • In water deer, Hydropotes inermis, the eruption age of mandibular molars has been described in two studies, but the ages were inconsistent with each other. (elsevier.com)
  • Results The eruption age of mandibular molars in water deer was consistent with that of a previous study. (elsevier.com)
  • The present study aim to analyze the relationship between the lower third molars development stage and the chronological age of individuals in Midwest Brazil region. (scielo.br)
  • The third molars development stage was analyzed based on the method described by Nolla and related with the chronological age of the individual by linear regression. (scielo.br)
  • It was observed that both, male patients (R2 = 0.7495) and females (R2 = 0.8507), showed a linear correlation between the third molars development stage and chronological age. (scielo.br)
  • There is a relationship between chronological age and developmental stage of the third molars in the sample studied. (scielo.br)
  • The premolars and molars are commonly called "cheek-teeth" or "grinders" and have no importance in the determination of age. (motherearthnews.com)
  • The adult dog has four molar teeth in the top jaw and six in the lower jaw, while the cat only has four molars in all (one on each side of both the top and bottom jaw). (stabroeknews.com)
  • Fifty-three percent of adults aged 25-44 and 29% of adults aged 45-64 had a full set of permanent teeth (excluding third molars) ( Figure 3 ). (cdc.gov)
  • This systematic review examines evidence on the agreement between Demirjian's development stages of the third molar and chronological age. (springer.com)
  • We searched four databases up until May 2016 for studies reporting Demirjian's stages of third molar and confirmed chronological age of healthy individuals aged 10-25 years. (springer.com)
  • The mean chronological age for Demirjian's stages varied considerably between studies. (springer.com)
  • Mincer HH, Harris EF, Berryman HE (1993) The A.B.F.O. study of third molar development and its use as an estimator of chronological age. (springer.com)
  • Dahlberg PS, Mosdøl A, Ding Y et al (2018) A systematic review of the agreement between chronological age and skeletal age based on the Greulich and Pyle atlas. (springer.com)
  • Third molar development, in comparison to other teeth in the dentition, has the greatest variation in morphology, anatomical position, and time of development and eruption, and its reliability for chronological age estimation is controversial. (biomedsearch.com)
  • 2. the measure of an attribute relative to the chronological age of an average normal individual. (thefreedictionary.com)
  • bone age osseous development shown radiographically, stated in terms of the chronological age at which the development is ordinarily attained. (thefreedictionary.com)
  • chronological age the measure of time elapsed since a person's birth. (thefreedictionary.com)
  • 1 a stage of development at which the body has arrived, as measured by physical and laboratory standards, to what is normal for a male or female of the same chronological age. (thefreedictionary.com)
  • Lots of things can influence how well biological and chronological age line up , including nutrition, environmental exposure to disease-causing germs and viruses (and their level of virulence), whether the person has been vaccinated against preventable diseases, body weight, hormones and genetics, among many others. (theconversation.com)
  • Cardoso HFV , Caldas IM, Andrade M. Dental and skeletal maturation as simultaneous and separate predictors of chronological age in the living: Assessing the likelihood/probability of having attained 16 years of age in males. (sfu.ca)
  • Dental age assessment is one of the most reliable methods of chronological age estimation used for criminal, forensic and anthropologic purposes. (intechopen.com)
  • It is commonly recommended that you visit the dentist twice a year to clean your teeth and gums and also do the basic check ups. (medindia.net)
  • Brushing and flossing your teeth helps keep healthy gums and teeth, but do you know which should be prioritized? (hubpages.com)
  • Maintaining healthy teeth and gums is part of maintaining a healthy body, says Low. (abc.net.au)
  • As domestic cats rarely use their teeth for grinding there is little wear but the general condition of the teeth and gums provide indications of age. (pictures-of-cats.org)
  • Marroquin TY, Karkhanis S, Kvaal SI, Vasudavan S, Kruger E, Tennant M (2017) Age estimation in adults by dental imaging assessment systematic review. (springer.com)
  • Mineralization was first detected at gestational age of 5 months in the incisor teeth . (bvsalud.org)
  • from 108 women at an average gestational age of 8 weeks. (bio-medicine.org)
  • In recent years some studies have been taken to evaluate the applicability of the third molar development analysis in the estimation of human age. (scielo.br)
  • Kumagai A, Willems G, Franco A, Thevissen P (2018) Age estimation combining radiographic information of two dental and four skeletal predictors in children and subadults. (springer.com)
  • This study aims to assess the accuracy of age estimation according to two cut-off points of Demirjian's developmental stages (G and H) in the wisdom teeth, using panoramic radiographs from Colombian and Mexican teenagers. (biomedsearch.com)
  • His research has included sex determination and age estimation from teeth, identification methodologies and he is the first author of more than 50 original scientific articles. (springer.com)
  • Therefore, a certain amount of error can be expected in the final age estimation. (theconversation.com)
  • But because a disparity exists, forensic anthropologists refer to the results of the scientific methods we use as "age estimation. (theconversation.com)
  • Are we using the appropriate reference samples to develop juvenile age estimation methods based on bone size? (sfu.ca)
  • Cardoso HFV , Spake L, Humphrey L. Age estimation of immature human skeletal remains from the size of the scapular and pelvic girdle bones in the postnatal period. (sfu.ca)
  • Cardoso HFV , Vandergugten J, Humphrey L. Age estimation of immature human skeletal remains from the metaphyseal and epiphyseal widths of the long bones in the post-natal period. (sfu.ca)
  • Visual, radiographic, chemical and histological techniques can be used for dental age estimation. (intechopen.com)
  • It needs to be taken into consideration that rather than restricting on one age estimation technique, using the other available techniques additionally and performing repetitive measurements may be beneficial for accurate age estimation. (intechopen.com)
  • Neither cats nor dogs have "baby" molar teeth. (stabroeknews.com)
  • The eruption of the molar teeth begins when the animals are about four to five months old and is completed two to three months later. (stabroeknews.com)
  • the later erupting molar teeth at the back of the mouth formed more slowly, and mainly after birth. (scientistlive.com)
  • The canine teeth are not pointed but look like incisors. (wikipedia.org)
  • We examined functional teeth (except for upper canine teeth) of Pacific walruses that died or were harvested on the coast of the Chukchi Peninsula in 2005, 2007-2008, and 2010-2011. (springer.com)
  • Mares, by the way, usually do not have any canine teeth (if they're present at all, they are usually very small). (motherearthnews.com)
  • The "baby" canine teeth (the long ones on the side) are quite visible at three to four weeks of age in both the dogs and cats. (stabroeknews.com)
  • When the jaw is closed the canine teeth interlock and the lower incissors rest just in front of the upper incissors. (pictures-of-cats.org)
  • Radiographic evaluation of the wisdom teeth (third molar) formation is a widely used age assessment method for adolescents and young adults. (springer.com)
  • There is significant heterogeneity between studies evaluating age assessment by Demirjian's third molar development. (springer.com)
  • The use of number (year) branding, tattoos or ear tags with numbers or different colours are good methods of identifying the age of cattle, if they are used according to standards. (wikipedia.org)
  • Dental methods are components of the recommendations by the Study Group on Forensic Age Diagnostics of the German Association of Forensic Medicine for age assessment in the living. (springer.com)
  • Different methods starting from the tooth eruption (Andrews 1981), x-ray (Simon & Frydendall 1981), cementum layers count (Matson et al. (thefreedictionary.com)
  • Many methods of age determination have been used to date. (scielo.org.ar)
  • Over the years, various methods have been used to try and estimate fox age, including the weight of the eye lens, general dental development (i.e. tooth eruption), tooth wear, baculum (penis bone) development, cranial measurements and tooth sectioning. (me.uk)
  • Without scientific studies on growth that are specific to each population, we don't know if on average, Population A ages six months, one year or two years faster or slower than Population B. And while many methods are bolstered by a statistical likelihood, this is not the same thing as being certain. (theconversation.com)
  • Furthermore, for infants and juveniles, there are no reliable morphological methods for sex determination without resorting to DNA analysis, which requires good DNA survival and is time-consuming. (dur.ac.uk)
  • Traditional structural re-creation methods used by anthropologists to determine age are often imprecise," Buchholz said. (innovations-report.com)
  • However, in cases where the entire dentition has to be restored and no information can be gained from remaining natural teeth, old photographs, or cast models, other methods have to be applied to select and design the missing teeth. (hausarbeiten.de)
  • The review of dental literature reveals several factors, methods, techniques and theories that have been suggested as aids for artificial tooth selection. (hausarbeiten.de)
  • The chemical analysis of dental hard tissues determines alterations in ion levels with age, whereas the histological and chemical methods are invasive methods requiring extraction/sectioning of the tooth. (intechopen.com)
  • The visual methods used to assess the colour of the tooth by comparison to the original colour samples can be insufficient [4]. (termedia.pl)
  • Instrumental methods for tooth colour evaluation are colorimeters, spectrophotometers, extra- and intraoral cameras, and digital cameras. (termedia.pl)
  • The forensic anthropologist applies varying scientific methods to examine and obtain extensive measurements from bones in order to give an identity (sex, age, race and stature) to the unidentified skeletal remains (St. Thomas University, 2010). (ukessays.com)
  • 1995), who examined the value of statistical and graphical methods for determining the consistency of fish age estimates. (wolfsongalaska.org)
  • Cattle have thirty-two teeth, including six incisors or biting teeth and two canines in the front on the bottom jaw. (wikipedia.org)
  • By the age of 6 months, first DM showed evidence of mineralization while, the canines and the second DM exhibited IM at 7 months. (bvsalud.org)
  • 5 to 6 months of age, the replacement of 2 to 3 breast milk incisors and canines. (google.com)
  • Progressive wear on canines, incisors, and carnassials was described for wolves of each age class. (wolfsongalaska.org)
  • Three of the authors (Ballard, Gipson, and Nowak) then independently estimated the ages of 20 known-age wolves from Minnesota and Ontario by comparing wear on their incisors, canines, and carnassials to the Alaska collection. (wolfsongalaska.org)
  • We then used the 20 wolves of known age to describe wear on incisors, canines, and carnassials characteristic of each yearly age class from 1-14 years of age. (wolfsongalaska.org)
  • We also developed charts illustrating typical tooth wear in 2-year increments on incisors, canines, and carnassials that can be compared to the teeth of live wolves or museum specimens to estimate their age (Figs. 1, 2). (wolfsongalaska.org)
  • Progressive wear on wolf incisors and canines in 2-year increments from 1 to 12 years of age. (wolfsongalaska.org)
  • Temporary incisors or "milk" teeth are smaller than the permanent incisors. (wikipedia.org)
  • The teeth of cattle are designed primarily for grinding, and they use their rough tongues to grasp grass and then nip it off between their incisors and the dental pad. (wikipedia.org)
  • In a horse (which has six of these teeth above and six below), for instance, the two directly in the front and center of each jaw are called "centrals" or 1st incisors. (motherearthnews.com)
  • For example, the adult dog teeth 42, which are all short canine tooth crown, the first maxillary incisor crown and a second for three spike-shaped, that is central to a large spike, small spikes on both sides, the rest of the incisors have the size of the two spikes, fangs curved conical tip sharp attack and self-defense weapons. (google.com)
  • 2 to 4 months of age, the replacement of the first milk incisors. (google.com)
  • In other words the front teeth of the top jaw do not mesh with the incisors of the lower jaw. (stabroeknews.com)
  • These genetic defects (malformation of the jaws) result in an uneven wear of the teeth, especially the incisors. (stabroeknews.com)
  • The formation and integration of new hippocampal neurons in adult mammals (adult hippocampal neurogenesis, AHN) correlates negatively with age and positively with habitat complexity. (frontiersin.org)
  • Using biological and morphological criteria we define four age categories: young, sub adult, adult and senescent adult. (scielo.org.ar)
  • This is the reason that a tooth such as the first adult molar is also known as the "six-year molar," because it generally erupts in everyone around age 6, give or take. (theconversation.com)
  • With few exceptions, afrotherians are closer to median adult jaw length with fewer erupted, permanent cheek teeth than comparable stages of non-afrotherians. (biomedcentral.com)
  • By examining permanent adult teeth in this way, it has provided us with key insights into the evolution of dental development, as well as aspects of life history in our fossil ancestors. (scientistlive.com)
  • Now that we know that human milk teeth do not develop in the same way as adult permanent teeth, we can start the discovery process again, through comparative analyses with other primates and our fossil ancestors. (scientistlive.com)
  • Temporary teeth in livestock appear and are replaced by the eruption of permanent teeth during fairly predictable periods of an animal's life. (motherearthnews.com)
  • Manatees (but not dugongs), elephants and hyraxes with known age data show eruption of permanent teeth late in ontogeny relative to other mammals. (biomedcentral.com)
  • Morphological characteristics shared by such physically disparate animals such as elephants and golden moles are not easy to recognize, but are now known to include late eruption of permanent teeth, in addition to vertebral anomalies, testicondy and other features. (biomedcentral.com)
  • The tooth buds grow at specific zones along the dental lamina, giving rise to primary and secondary dentition. (thefreedictionary.com)
  • Radiographs of the dentition can be used to determine the stage of dental development of the teeth from initial mineralization of a tooth, crown formation to root apex maturation. (intechopen.com)
  • Specimens showing less than half (sengis, golden moles) or two-thirds (tenrecs, hyraxes) of their permanent cheek teeth reach or exceed the median jaw length of conspecifics with a complete dentition. (biomedcentral.com)
  • In this study, we aimed to confirm the eruption age of mandibular posterior teeth for the accurate age determination of water deer and to evaluate the efficacy of maxillary posterior teeth for the age determination of deer. (elsevier.com)
  • Design The eruption of mandibular and maxillary posterior teeth was investigated in the dry skulls of individual wild water deer of both sexes, up to an age of about 15 months. (elsevier.com)
  • The deciduous mandibular fourth premolar and the permanent maxillary fourth premolar were two easiest teeth to be identified for the age determination. (elsevier.com)
  • Conclusions The former controversial eruption age of mandibular posterior teeth in water deer was confirmed. (elsevier.com)
  • 2012) presented a staging system for the assessment of secondary dentin formation in orthopantomograms for age assessment of living persons based on the radiographic reduction of the pulp cavity in mandibular premolars. (springer.com)
  • A previous cross-sectional investigation showed that the mandibular foramen location depends on the age and the vertical facial pattern of growing individuals. (biomedsearch.com)
  • 7-year-old dog, mandibular third incisor teeth worn to the roots, wear-section vertical oval. (google.com)
  • Age determination about the dog to the dog's teeth growth conditions, the degree of tooth wear and tooth peaks, as well as the color of the teeth to determine the age of an important basis for the dog. (google.com)
  • From the very outset, let me make it clear that only the observation of a dog's teeth to ascertain its true age is not an accurate method. (stabroeknews.com)
  • Milk and eight tooth cattle are not marked. (wikipedia.org)
  • See eruption and change of "milk" teeth in puppies (The Pet Corner October 18th, 2009). (stabroeknews.com)
  • Until this analysis was undertaken, relatively little was known about the microscopic growth of human milk teeth along the tooth row. (scientistlive.com)
  • Partly because of this, a comparative framework for understanding the development of milk teeth in human ancestors was missing. (scientistlive.com)
  • It is suggested that posterior teeth not only in the mandible but also in the maxilla are useful indicators for the age determination of water deer. (elsevier.com)
  • Remember that the cat only has four permanent premolar teeth in the lower jaw (two on each side) as compared with the dog which has eight in the lower mandible. (stabroeknews.com)
  • Tooth decay in toddlers, children and adults, also called dental caries, is a bacterial infection causing demineralization and destruction of the hard tissues of the teeth. (medindia.net)
  • The aim of the present study was to evaluate the relationship between BMI and tooth decay in a population of Iranian children. (hindawi.com)
  • Disease: A few of the many diseases which we discussed over the past few months (e.g. gingivitis, stomatitis, tartar build-up, tooth decay, etc) could lead to the demise of teeth. (stabroeknews.com)
  • Catechins have been shown to kill mouth bacteria associated with tooth decay and gum disease, so the researchers suspect this is what gives green tea its dental benefits. (abc.net.au)
  • We described a method for the preliminary determination of the relative age of walruses based on the ratio between the width of cement and dentin on the attrition surface of lower teeth (without cutting). (springer.com)
  • Harris also found that tooth attrition (wear) could be used effectively in some populations (93% of the sample up to four years old were correctly aged this way), but was a highly variable character-it's heavily related to the diet of the animal in question, and tooth wear is slower in old age-and was thus not a reliable method of assessing absolute age. (me.uk)
  • Visual method is based on the sequence of eruption of the teeth and morphological changes that are caused due to function such as attrition, changes in color that are indicators of aging. (intechopen.com)
  • One should note that in the lower jaw of the kitten, the first premolar teeth are absent in the beginning. (stabroeknews.com)
  • Ages were also estimated by Matson's Laboratory (Milltown, Montana, USA) by sectioning canine and-or premolar teeth and counting cementum annuli. (wolfsongalaska.org)
  • Thus two tooth cattle are marked on the wither , four tooth on the middle of the back and six tooth on their high bone (near tail). (wikipedia.org)
  • About 30 percent of // all males over age 50 suffer from the condition to some degree, with symptoms ranging from diminished appetite, fatigue, and decreased libido to irritability, decreased muscle mass and strength, and decreased bone mineral density. (bio-medicine.org)
  • Elephants attain their maximum stature when they complete the fusion of long-bone epiphyses, occurring in males around the age of 40 and females around the age of 25. (wikipedia.org)
  • Tooth eruption is a physiologic process in which teeth move from their development position within the alveolar bone to break the gum toward the oral cavity. (aappublications.org)
  • A majority of experts would agree that a properly prepared homemade raw diet with ground bone is the answer to natural cat teeth health. (pictures-of-cats.org)
  • The last upper molar on the top jaw and the lower molar together make up the "carnassial teeth" (the large teeth found in many carnivorous mammals, used for shearing flesh and bone in a scissor or shear-like way 5 ). (pictures-of-cats.org)
  • Experimental specimens will include intact bone-periodontal ligament (PDL)-tooth fibrous joints. (jove.com)
  • The best alternative in periapical radiographs to measuring the alveolar bone height in relation to the root length was to measure it in relation to the tooth length. (arctichealth.org)
  • Many have arrived without IDs, leaving Sweden the task of checking their real ages to ensure adults - defined as age 18 or over - were not pretending to be minors to secure asylum. (reuters.com)
  • Half of unaccompanied minors have been registered as between 16 and 17, often making age confirmation difficult and sparking accusations from the likes of the far-right Sweden Democrats - the third biggest party in parliament - that adults are taking advantage of soft controls to enter the country. (reuters.com)
  • Similarly, the weight of the eye lens-which grows throughout life but experiences very little wear-could separate yearlings from adults (91% with lenses weighing less than 210mg were less than a year old), but thereafter there was too much overlap between age classes to be reliable. (me.uk)
  • In the absence of other information that could corroborate the teens' self-reported ages, analysis of their dental X-rays revealed that both could be adults. (theconversation.com)
  • Previous research has indicated that regular consumption of green tea may lead to a lower instance of periodontal disease, a leading cause of tooth loss in adults," says Samuel Low of the University of Florida College of Dentistry and President of the American Academy of Periodontology . (abc.net.au)
  • More than one-third of older adults aged 65-74 living below the federal poverty level (34%) were edentulous, whereas approximately one-eighth of older adults living above the poverty level (13%) were edentulous. (cdc.gov)
  • Tooth retention varied by race and ethnicity and poverty level among adults aged 25-64. (cdc.gov)
  • For adults living at 100% of the federal poverty level or lower, 42% had not lost a permanent tooth, whereas for adults living above the poverty level, approximately 55% had retained all of their permanent teeth. (cdc.gov)
  • The application of this method will make sex determination of adults and, for the first time, juveniles a reliable and routine activity in future bioarcheological and medico-legal science contexts. (dur.ac.uk)
  • Dr Stewart said: "This new method can reliably determine the biological sex of humans of any age using a body tissue that is difficult to cross-contaminate and is most likely to survive and will make sex determination of adults and, for the first time, juveniles a reliable and routine activity in future. (brighton.ac.uk)
  • Cattle are placed in a cattle crush in order to restrain them prior inspecting the mouth and amount of teeth that each animal has. (wikipedia.org)
  • There is controversy on the reliability of attempting to tell the age of cattle by their teeth, as rate of wear can be affected by the forage that is grazed. (wikipedia.org)
  • Fat cattle auctions in New South Wales, Australia identify the amount of teeth that prime animals have in the form of sprayed marks along the back. (wikipedia.org)
  • Cattle age in a carcase is determined checking the physiological skeletal maturity (ossification) (red) of the tips or "buttons" of the thoracic vertebrae . (wikipedia.org)
  • means the skull, brain, trigeminal ganglia, eyes, palatine tonsils, spinal cord and dorsal root ganglia (DRG) of cattle aged 30 months or older, as well as the distal ileum of cattle of all ages. (gc.ca)
  • means cattle that are under 30 months of age. (gc.ca)
  • Amino acid dating is a dating technique used to estimate the age of a specimen in paleobiology, molecular paleontology, archaeology, forensic science, taphonomy, sedimentary geology and other fields. (wikipedia.org)
  • Only a few of the studies based their results on an unbiased age structure, which we argue as important to provide an adequate description of the method's ability to estimate age. (springer.com)
  • Image: Three Red fox tooth cross-sections showing how staining highlights incremental bands, allowing an estimate of the animal's age. (me.uk)
  • Cardoso HFV , Meyers J, Liversidge H. A Reappraisal of Developing Deciduous Tooth Length as an Estimate of Age in Human Immature Skeletal Remains. (sfu.ca)
  • The radiocarbon analysis showed that dating the teeth with the carbon-14 method would estimate the birth date within one year. (innovations-report.com)
  • Next, we collectively compared tooth wear on the 20 wolf skulls and arrived at a consensus age estimate of each wolf. (wolfsongalaska.org)
  • We calculated individual coefficients of variation of the age estimate for each wolf, then averaged across wolves to produce a mean coefficient of variation for the reader (Campana et al. (wolfsongalaska.org)
  • A slope other than 1 would reflect inconsistency in the age estimate compared to known age. (wolfsongalaska.org)
  • An intercept other than zero would indicate a systematic bias between the estimate of age by a reader and known age. (wolfsongalaska.org)
  • the histological primordial tissues found in the developing tooth within the jaw. (thefreedictionary.com)
  • Forensic anthropologists study the hard tissues of the human body, which includes bones and teeth. (theconversation.com)
  • The method provides excellent access to the tooth germs, which develop at a similar rate to that observed in vivo , surrounded by the other jaw tissues. (jove.com)
  • A feature suitable for age diagnosis is the secondary dentin formation of odontoblasts in the pulp cavity and the associated decrease in pulp volume. (springer.com)
  • Overall prevalence of signs and symptoms occurring during primary tooth eruption in children between 0 and 36 months was 70.5% (total sample = 3506). (aappublications.org)
  • Prevalence was significantly affected by age and by the year of study, but not by sex nor by the region of sampling. (biomedcentral.com)
  • Prevalence of untreated dental caries among children and adolescents, by age, race and ethnicity, and poverty level: United States, 2009-2010. (cdc.gov)
  • Dental sealant prevalence was significantly lower for non-Hispanic black adolescents (32%) compared with non-Hispanic white adolescents (56%), among those aged 13-15. (cdc.gov)
  • The aim of the present study was to compare the values of the Thylstrup & Fejerskov Index (TF index) for the determination of the prevalence of dental fluorosis using either all teeth (gold standard) or six upper anterior teeth (simplified TF index). (mdpi.com)
  • The only robust method of age determination uses tooth sections. (me.uk)
  • We examined specimens from false killer whales from combined strandings (South Africa, 1981) and harvest (Japan 1979-80) and found morphological evidence of changes in the activity of the ovaries in relation to age. (biomedcentral.com)
  • according to Schultz very old specimens with extreme wear of the teeth and signs of bony atrophy. (loris-conservation.org)
  • Specimens in some recorded cases resembled their parents at the age of 16 to 21 month. (loris-conservation.org)
  • Facial esthetics has important social and psychological effects on the human personality in which the appearance of anterior teeth is critical for an attractive face and pleasing smile. (hausarbeiten.de)
  • One of the most crucial parameters in this context is in selecting the correct shape and size of the maxillary anterior teeth. (hausarbeiten.de)
  • In prosthetic dentistry, sex related differences in tooth forms and arrangement of anterior teeth are assumed and optimal esthetics is also assumed to be achieved only if the face, arch, and tooth forms are in harmony. (hausarbeiten.de)
  • A total of 2346 radiographic images from 1167 female and 1179 male subjects aged 15-70 years were evaluated. (springer.com)
  • For example, their age was unknown but expected to be great," he said, based on studies from more than 50 years ago. (gantdaily.com)
  • Further analysis suggested the lifespan of Greenland sharks was at least 400 years, with sexual maturity reached around the age of 150. (gantdaily.com)
  • Teeth provide remarkable evidence about the early years of an individual's life. (bristol.ac.uk)
  • Over the past three years, Dr Pike has been perfecting a new micro-sampling technique which involves using a laser to take tiny samples from along the growth axis of a tooth. (bristol.ac.uk)
  • Using the laser allows for up to 2,000 measurements to be taken from a single tooth (earlier techniques allowed only four or five), thus creating a highly detailed picture of an individual's movements throughout the first 14 years of life. (bristol.ac.uk)
  • I sent the incisor teeth out to Wildlife Analytical Labs in Texas, where the cementum annuli method was used to confirm the buck's age at 5 1/2 years. (thefreedictionary.com)
  • The horns form fully when the animal reaches the age of five or six years but the bosses do not become "hard" till 8 to 9 years old. (wikipedia.org)
  • Saber-tooth cats, the bane of early humans (and pretty much every creature that co-existed with them), roamed the Earth for 42 million years before going extinct at the end of the ice age. (zmescience.com)
  • The saber-tooth cats were found worldwide from the Eocene epoch (42 million years ago) to about 11,000 years ago - the earliest human cultures might have actually seen them in action. (zmescience.com)
  • The most well known saber-tooth cat is the Smilodon, who emerged 2.5 million years ago and weighed up to 440 kg. (zmescience.com)
  • The sandy-haired miss from South Jordan, Utah, with braces on her teeth, an easy smile, a little-girl walk and school-girl shyness, showed she also has a master's touch, a champion's confidence, a winner's determination and shooting skills far beyond her years. (deseretnews.com)
  • Yasushi Koyama of the Tohoku University Graduate School of Medicine and colleagues looked at more than 25,000 Japanese men and women between age 40 and 64 years in making the determination. (abc.net.au)
  • Approximately one in four children aged 3-5 and 6-9 years living in poverty had untreated dental caries. (cdc.gov)
  • In 2009-2010, 14% of children aged 3-5 years had untreated dental caries ( Figure 1 ). (cdc.gov)
  • Among children aged 6-9 years, 17% had untreated dental caries, and among adolescents aged 13-15, 11% had untreated dental caries. (cdc.gov)
  • Untreated caries was nearly twice as high for Hispanic children (26%) compared with non-Hispanic white children (14%) aged 6-9 years, and was more than twice as high for non-Hispanic black adolescents (25%) compared with non-Hispanic white adolescents (9%) aged 13-15. (cdc.gov)
  • For children aged 3-5 and 6-9 years living at or below 100% of the federal poverty level, untreated dental caries was significantly higher compared with children living above the poverty level. (cdc.gov)
  • Thirty-two percent of children aged 6-9 years and 51% of adolescents aged 13-15 had at least one dental sealant on a permanent tooth in 2009-2010 ( Figure 2 ). (cdc.gov)
  • A 30 years old patient came to our observation with five impacted teeth (1.8, 2.8, 3.8, 4.7 and 4.8), as well as with the presence of an impacted supernumerary tooth (distomolar 4.9). (medsci.org)
  • The patient was suggested to allow us to perform a radiologic screening to his two sisters aged 17 and 13 years. (medsci.org)
  • The sample was made up of 396 individuals aged six to 22 years from three Brazilian cities with endemic fluorosis caused by the ingestion of water with high fluoride concentration. (mdpi.com)
  • 26). Plaintiff testified T.A. was four years of age. (justia.com)
  • The known-minimum age of Alaska wolves differed by 0-7 years from estimated age. (wolfsongalaska.org)
  • One specimen with initially almost black circumocular hair was already rather grey at the age of five years and at the age of 9 years showed a very light grey to almost white face, a feature apparently inherited from the wildcaught father who also showed some white facial hairs at a rather early age and was almost white when he died after 13 years in captivity. (loris-conservation.org)
  • Taking lactobacillus starting at the beginning of the second trimester of pregnancy helps to prevent diabetes during pregnancy, especially in mothers over 35 years of age and mothers that had diabetes during another pregnancy. (komen.org)
  • Tooth discoloration or staining is caused commonly due to smoking, some medicines and poor dental hygiene. (medindia.net)
  • This cross-sectional observational study comprised a total of 120 panoramic radiographies of patients aged 5-22 year-old, males and females, attended between 2007 and 2012 at our Institution. (scielo.br)
  • Table 1: Descriptive statistics for comparison of predominant maxillary central incisor tooth form in males and females of Saudi Arabian population. (hausarbeiten.de)
  • So, the present clinical study was conducted to classify various anterior tooth forms, arch forms and palatal forms with its predominant occurrence in both males and females of Saudi population. (hausarbeiten.de)
  • They found that men who drank at least one cup of tea a day were 19% less likely to have fewer than 20 teeth (a full set including wisdom teeth is 32) than those who did not drink green tea. (abc.net.au)
  • Experimental zirconia abutments for implantsupported single-tooth restorations in esthetically demanding regions: 4-year results of a prospective clinical study. (thejcdp.com)
  • Evaluation of soft tissue around single-tooth implant crowns: the pink esthetic score. (thejcdp.com)
  • Smaller objects like single tooth surface can be scanned with an even higher accuracy, enabling the system to assess erosive and abrasive tooth surface loss. (jove.com)
  • Although data on the absolute timing of eruption in sengis, golden moles and tenrecs are still unknown, craniometric comparisons for ontogenetic series of these taxa show that considerable skull growth takes place prior to the complete eruption of the permanent cheek teeth. (biomedcentral.com)
  • First, age-bias graphs were developed for diagnosing systematic differences between age determinations based on tooth wear and by the commercial aging service that counted cementum annuli. (wolfsongalaska.org)
  • Our study first presented the eruption age of maxillary posterior teeth in water deer. (elsevier.com)
  • The relative age of a deer can be determined by the number of teeth in younger deer and the amount of dentine exposed (tooth wear) in older deer (see Figure 2). (radford.edu)
  • The West Virginia Department of Natural Resources website states, "When the harvested deer are aged by tooth replacement and wear, valuable information about the deer herd can be obtained. (radford.edu)
  • 2. in psychology, the age of an individual determined by degree of emotional, mental, anatomical, and physiological maturation. (thefreedictionary.com)
  • The incisor teeth meet with the thick hard dental pad of the upper jaw. (wikipedia.org)
  • Figure 1: Frontal photograph of the maxillary incisor teeth. (hausarbeiten.de)
  • The aim of this study was to review the body of knowledge related to dental pulp stem cells, the most common growth factors, and the scaffolds used to control their differentiation, and a clinical technique for the management of immature non-vital teeth based on this novel concept. (go.jp)
  • This technique will permit the determination of absolute developmental age not only for Smilodon, but other extinct species. (zmescience.com)
  • The AERB said, "As the regulator for radiation safety in the use of X-rays for medical diagnostic applications, we don't approve such routine use of dental X-ray examination solely for the purpose of age determination. (medindia.net)
  • The crucial point is that it's not possible to make a definitive, single age determination from X-rays or examination of bones or teeth. (theconversation.com)
  • Dental pertains to the teeth, including dentistry. (wikipedia.org)
  • EASO (2018) Practical guide on age asessment. (springer.com)
  • My work can include estimating the ages of deceased persons using X-rays of bones and teeth, and I'm intimately familiar with the limitations of how specific these techniques can be. (theconversation.com)
  • What can bones and teeth tell us? (theconversation.com)
  • Also using up-to-date techniques such as ion beam analysis, this element can help relative dating applications, ranging from burial durations of archaeological bones and teeth to the determination of exposure ages of meteorites on the Antarctic ice shield. (worldcat.org)
  • Instead, a variety of other changes independently occurred, including grey to white facial hair (circumocular patches), patchy pigmentation of the skin, decreased vision, cataract, loss of weight, thinning of the fur, loss of some teeth and tartar, but onset of these changes varied individually. (loris-conservation.org)
  • For the present study, the applicability of this staging system was examined on a larger collective with a larger age range. (springer.com)
  • Our second objective was to identify the timing, magnitude and cause of age-specific mortality occurring in the study population. (thefreelibrary.com)
  • She explained that these "sleeper sharks" are notoriously hard to study and said attempts to determine their age have shown little promise. (gantdaily.com)
  • This study on Greenland sharks appears to open a new avenue of study into aging these deepwater shark species. (gantdaily.com)
  • Tooth Loss and Atherosclerosis: The Nagahama Study. (biomedsearch.com)
  • achievement age the age of a person expressed as the chronologic age of a normal person showing the same proficiency in study. (thefreedictionary.com)
  • Now, a new study has found that their trademark teeth may have evolved later in their evolutionary stage, but when they grew, they grew fast. (zmescience.com)
  • It seems to occur more often in patients with hereditary factors concerning this anomaly: this case represents a rare form of hyperdontia, with bilateral multiple supernumerary teeth, with evident penetrance of the phenotype in the family unit engaged in the present study. (medsci.org)
  • The null hypotheses of the study assumed uniform results for two different spectrophotometers used in colour selection of acrylic prosthetic teeth. (termedia.pl)
  • Essentially, we compare the stage of growth shown in the X-ray to existing growth charts from children and teenagers of known ages. (theconversation.com)
  • A basic knowledge of human biology, growth and development, and the aging process is needed to identify gradual changes that occur in the skeleton from birth to old age. (slideserve.com)
  • He said: 'Teeth retain a growth record. (scientistlive.com)
  • A gestation period of 457 d and birth mass of 102 kg (higher than in the literature) was used to determine the age of foetuses whose growth was similar to other uniparous mammals. (up.ac.za)
  • The Indian atomic energy regulatory board (AERB) has disapproved the practice of taking dental X-ray for determination of a child's age, and has warned such practice are deviations from the terms of its license and registration. (medindia.net)
  • This demineralization of the tooth surfaces results in appearance of white spots or even caries. (intechopen.com)
  • Dental caries on the teeth of buried skeletons, interpreted as evidence of a high-carbohydrate diet, are among the reasons for concluding that these communities had a more diversified economy and diet than previously believed. (news-medical.net)
  • Figure 4: Tracing printout of the maxillary incisor tooth form. (hausarbeiten.de)