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

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)

There are several types of tooth loss, including:

1. Anterior tooth loss: This occurs when one or more front teeth are missing.
2. Posterior tooth loss: This occurs when one or more back teeth are missing.
3. Bilateral tooth loss: This occurs when there is a loss of teeth on both sides of the dental arch.
4. Unilateral tooth loss: This occurs when there is a loss of teeth on one side of the dental arch.
5. Complete tooth loss: This occurs when all teeth are missing from the dental arch.
6. Partial tooth loss: This occurs when only some teeth are missing from the dental arch.

Tooth loss can cause various problems such as difficulty chewing and biting food, speech difficulties, and changes in the appearance of the face and smile. It can also lead to other oral health issues such as shifting of the remaining teeth, bone loss, and gum recession.

Treatment options for tooth loss vary depending on the cause and severity of the condition. Some possible treatments include dentures, implants, bridges, and crowns. It is important to seek professional dental care if you experience any type of tooth loss to prevent further complications and restore oral health.

Synonyms: supplemental tooth; extra tooth; hyperdontia.

See Also: Tooth; Dentition.

1. Congenital abnormalities: These are present at birth and may be caused by genetic factors or environmental influences during fetal development. Examples include hypodontia (absence of one or more teeth), hyperdontia (extra teeth), or anodontia (absence of all teeth).
2. Acquired abnormalities: These can occur at any time during life, often as a result of trauma, infection, or other conditions. Examples include tooth decay, gum disease, or tooth wear and tear.
3. Developmental abnormalities: These occur during the development of teeth and may be caused by genetic factors, nutritional deficiencies, or exposure to certain medications or chemicals. Examples include enamel hypoplasia (thinning of tooth enamel) or peg-shaped teeth.
4. Structural abnormalities: These are irregularities in the shape or structure of teeth, such as anomalies in the size, shape, or position of teeth. Examples include crowded or misaligned teeth, or teeth that do not erupt properly.
5. Dental caries (tooth decay): This is a bacterial infection that causes the breakdown of tooth structure, often leading to cavities and tooth loss if left untreated.
6. Periodontal disease: This is an inflammatory condition that affects the supporting tissues of teeth, including the gums and bone, and can lead to tooth loss if left untreated.
7. Tooth wear: This refers to the wear and tear of teeth over time, often due to habits such as bruxism (teeth grinding) or acid reflux.
8. Dental anomalies: These are rare, genetic conditions that affect the development and structure of teeth, such as peg-shaped teeth or geminated teeth (two teeth fused together).

These are just a few examples of tooth abnormalities, and there are many more conditions that can affect the health and appearance of teeth. Regular dental check-ups can help detect and address any issues early on to ensure good oral health.

There are different types of tooth wear, including:

1. Attrition: This is the most common type of tooth wear and occurs when the enamel surfaces of teeth rub against each other.
2. Abrasion: This type of wear occurs when the outer layer of enamel is worn away by a foreign object such as a toothbrush or dental appliance.
3. Erosion: This type of wear occurs when acidic substances such as citrus fruits, soda, and sugary drinks dissolve the enamel surface of teeth.
4. Exfoliation: This type of wear occurs when a tooth is lost due to decay, injury, or gum disease, and the surrounding teeth shift to fill the gap.

Tooth wear can cause a range of symptoms including:

* Sensitivity to hot or cold temperatures
* Pain when chewing or biting
* Aesthetic concerns such as chipped or worn-down teeth
* Difficulty speaking or pronouncing certain words

Tooth wear can be prevented or treated by practicing good oral hygiene, avoiding acidic and sugary foods and drinks, using a soft-bristled toothbrush, and visiting the dentist regularly for check-ups and cleanings. In severe cases, dental restorations such as fillings, crowns, or veneers may be necessary to restore the shape, size, and function of teeth.

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 ... 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) wide ... 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 ...
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 ...
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. ...
"Using a novel absolute ontogenetic age determination technique to calculate the timing of tooth eruption in the saber-toothed ... After Smilodon reached 23 to 30 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 reached between 12 and 19 months 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 " ...
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 ...
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: ... Determining the exact age of killer whales in the wild was not possible until present. The cross-section of the teeth is often ... The cause of death is unknown, however experts believe that Old Tom died of his age and/or starvation due to worn down teeth. ...
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 ...
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. ... Age estimation of living individuals is carried out by estimating the biological age when the chronological age of the ... The determination of an individual's age by anthropologists depends on whether or not the individual was an adult or a child. ...
... 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 ...
The genetic determination of the Hasanlu lovers was male. The age of the two skeletons was also determined. Dental evidence ... and his wisdom teeth recently grew. His skull was less developed, which was attributable to the young age of the individual. ... and was estimated to have been aged to about 30-35 years. Sex determination of the left skeleton was less definitive. Evidence ... Approximately 246 skeletons, of a variety of ages and genders were found. The bodies were left where they were killed in the ...
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 morphology of Neanderthal's anterior teeth has been seen as an adaptation to the heavy use of their canines and incisors in ... Hooijer DA (1948). Prehistoric Teeth of Man and of the Orang-utan from Central Sumatra, with notes on the Fossil Orang-utan ...
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 ...
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 ...
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 ages 12-14 years, as they cease to form around this age. ...
Age Determination in Beef Cattle Determining the Age of Cattle by Their Teeth Using Dentition to Age Cattle (Webarchive ... 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 ...
... 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 ...
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 ...
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 ...
Other referred specimens including teeth were found in the same location and were estimated to be early Pliocene in age. Q. ... It represents a rare limb element which could be from Quinkana, although no determination has been made of its species or genus ... Quinkana has teeth which have serrations on some crowns but not on others. All of its teeth are mildly recurved similarly to ... However, its ziphodont teeth and broad snout made it an outlier in the order as no other genera shared those features. These ...
Skeletochronological implications on age determination and life history traits". Comptes Rendus Palevol. 16 (4): 425-439. doi: ... tooth replacement, soft part reconstruction, and food intake". PalZ. 91 (1): 145-161. doi:10.1007/s12542-016-0332-6. ISSN 0031- ... However, several of these characteristics may reflect the old age of the specimen, rather than distinctive characteristics of ... lewisi were indicative of old age, suggesting that C. lewisi may be based on an old individual of another Camarasaurus species ...
... teeth, or bones of the jaw, pectoral girdle, and opercular series. Even reliable aging techniques may vary among species; often ... Earliest references to age determination of fishes and their early application to the study of fisheries. Fisheries History. ... Polat N, Bostanci D, Yilmaz S (2001) Comparable age determination in different bony structures of Pleuronectes flesus luscus ... Age validation, and comparison of otolith, vertebra and opercular bone for estimating age of Schizothorax o' connori in the ...
Age determination in fish Animal coloration Animal reflectors Photonic crystals Reptile scale Scale (zoology) Scale armour ... Placoid scales are structurally homologous with vertebrate teeth ("denticle" translates to "small tooth"), having a central ... Because of these teeth, the scales have a rough texture. They are usually found on fishes with spiny fin rays, such as the ... Placoid (pointed, tooth-shaped) scales are found in the cartilaginous fishes: sharks, rays. They are also called dermal ...
"Thermoluminescence age determinations for the Mungo III human burial, Lake Mungo, southeastern Australia". Quat. Sci. Rev. 15 ( ... The problems with using uranium-thorium dating on tooth enamel were criticised. The results from 25 additional OSL tests ... The age of 40,000 years is currently the most widely accepted age for the LM3, making LM3 the second oldest modern human fossil ... to collaborate on a final determination of the skeleton's age. They reached a consensus that LM3 is about 40,000 years old. ...
The age of the Surprise Canyon is established as Serpukhovian (Late Mississippian). The initial determinations of age ... Grand Canyon has yielded a remarkably diverse vertebrate fauna that consists of a total of thirty-one taxa identified from teeth ... Later, studies of the brachipods of the Watahomigi Formation furthered narrow the possible age range of the Surprise Canyon ... Finally, conodont studies determined that the Surprise Canyon Formation is Serpukhovian (Late Mississippian) in age and that ...
The regional offices then consider the types of construction planned as well as the age of the current wage determination. This ... Unions said that the law lacked enforcement teeth, while contractors said that it was impossible to know beforehand what the ... "Our evaluation of the wage determination files and inquiries regarding 73 wage determinations at Labor's headquarters and five ... About one-half of the area and project determinations we reviewed were not based on surveys [that the Department of] Labor made ...
In 1871, at the age of 21, Hill came to San Francisco with her brother, where they lived with their relatives, William and Ada ... Neagle later said he saw a look of determination and victory on Terry's face. Neagle rose from his chair and said, "Stop that! ... He hit Franks, knocking out a tooth, and the marshals drew their handguns. Spectators subdued Terry and led him out of the ... In the fall of 1880, at age 30, Hill met millionaire Senator William Sharon, the president of the Bank of California, the owner ...
Some evidence suggests that they might be major contributors to the aging process and age-associated pathologies. Particularly ... mtDNA may be present in bones, teeth, or hair, which could be the only remains left in the case of severe degradation. In ... "Do mitochondrial DNA and metabolic rate complement each other in determination of the mammalian maximum longevity?". ... In a recent study, it was showed that dietary restriction can reverse aging alterations by affecting the accumulation of mtDNA ...
As stated in the CMS website, 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 ... Minimum services include pain relief, restoration of teeth and maintenance for dental health. Early and Periodic Screening, ... a child under the age of 21 or a child of any age who is blind or disabled". The Act also carved out other exceptions for adult ...
It has dull teeth, which allow it to eat prey with shells more easily. A study of the alligator in 1985 showed that snails were ... It can live to over 50 years, and has been known to reach age 70 in captivity. It cannot breed past its 50s. The Chinese ... This temperature controls whether a young alligator will be male or female (temperature-dependent sex determination), a feature ... The alligator grows quickly in its first few years, with its growth rate slowing at age five. According to the National ...
In the 1950s Stevens was able to show the limestone was of Ordovician age, the first recording of limestone from this period in ... identified a Ghost Bat tooth from Cliefden making Cliefden Caves one of the most southerly locations for this genus, now ... The caves have great research potential, particularly in relation to the determination of past climates and hydrological ...
Since the age of three, she had been an orphan when her older brother Sora left their abusive parents' home with her and raised ... "Black Dragonfly". 鉄漿 means "black tooth dye"). In its shikai form, it becomes a large guan dao or monk's spade with a fanned ... As they fought together, however, Zangetsu's determination waver and he finally decide to unlock the youth's full potential in ... At a younger age, she abused her power out of love and ended up becoming an outcast before being found by Ginjō. Having ...
At the age of four, McKay went to school at Mt. Zion Church. Around the age of nine, he was sent to live with his oldest ... Entitled Amiable With Big Teeth: A Novel of the Love Affair Between the Communists and the Poor Black Sheep of Harlem, the ... They fought for black self-determination within the context of socialist revolution. Together they founded a semi-secret ... On May 22, 1948, he died from a heart attack in Chicago at the age of 58 and was buried at Calvary Cemetery in Queens, New York ...
Age written in teeth by nuclear tests". Nature. 437 (7057): 333-334. Bibcode:2005Natur.437..333S. doi:10.1038/437333a. ISSN ... for forensics and even for the determination of the year in which certain wine was produced. Biological studies carried out by ... it was possible to create a mathematical model in which length and age of the sharks were correlated in order to deduce the age ... "Lake Sturgeon Age Validation using Bomb Radiocarbon and Known‐Age Fish". Transactions of the American Fisheries Society. 138 (2 ...
But once the teeth are fully developed, age is hard to determine using teeth. In adults, degenerative changes to the pubic ... a new method for the determination of adult skeletal age at death". American Journal of Physical Anthropology. 68 (1): 15-28. ... 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- ...
He had been raised since the age of 3 in the Jenin Refugee Camp. Israel seeks to deport him to Brazil, though he speaks no ... De Waart, P. J. I. M (1994). Dynamics of Self-determination in Palestine: Protection of Peoples as a Human Rights. Brill. ISBN ... arming to the teeth trailing troops of lawyers, legal advisors, judges and scholars, have not operated to limit state violence ... In the first 2 years of the First Intifada, settlers killed at least 34 Palestinians, 4 below the age of 16, with 11 killed by ...
"Fear of the Lord is the beginning of wisdom." I did not want them to cast in our teeth what General Hood had once done at ... Only in your spirit and determination are you prepared for war. In all else you are totally unprepared, with a bad cause to ... H.W. Brands, The Age of Gold (Doubleday, 2002), p. 271. Sherman 1990, Note on the Text, p. 1122. Holden-Reid 2020, p. 489. ... According to Holden-Reid, Sherman finally "had cut his teeth as an army commander" with the Jackson Expedition. After the ...
An ultimate determination of whether or not the National Emergency Library constituted fair use could only be made by a court. ... The archive collects a range of Machinima films from internet publishers such as Rooster Teeth and as well as ... UK Web Archive WebCite Anna's Archive Archive Team Digital dark age Digital preservation Heritrix Library Genesis Link rot ...
However he developed an interest in poetry at the age of twelve, when his English teacher chose him to read a poem he had ... "Tooth & Nail". 5 June 2013. "Billy Bragg, The Sherpa of Heartbreak". PBS. 5 June 2013. "Billy Bragg: Official UK ... a dogged determination to hold the over-mighty to account. If, during the constitutional settlement that will follow the ... Love & Justice, Bragg released the studio album Tooth & Nail. Recorded in five days at the home studio of musician/producer Joe ...
Mola alexandrini has a relatively small mouth and its teeth fused into a parrot-like beak. It can reach up to 3.3 m (11 ft) in ... Additionally, developing with age are lateral ridges from above the head and below the eyes to beyond the pectoral fins. ... There is no absolute determination of when the best time is for spawning season, but research has shown that spawning in the ... a snout ossicle and a chin ossicle that develop overtime with age. Transitioning from eggs into larvae, specimens can reach ...
Tooth resistance will be increased by applying a 0.1% NaF solution over all tooth surfaces. At home, parents/caregivers will ... Determination of caries risk, by correlating information gathered through anamnesis, clinical examination, along with ... parents are required to enroll their babies from birth up to 6 months of age. Prior to the first clinical session, parents ... For high caries risk children, the aim is to revert the baby's caries risk, as well as to increase tooth resistance. Clinical ...
At age fourteen, Crawford emigrated to the United States from Ireland, joining other members of his family who had preceded him ... He was an old man, and his features wore a look of grim determination." Ute John scalped all of the dead, unknown to the ... and Chief American Horse refused morphine preferring to clench a stick between his teeth to hide any sign of pain or emotions ... At age seventeen, he enlisted in the Forty-eighth Pennsylvania Regiment volunteers and saw heavy fighting during the last ...
At the age of 16, and before finishing high school, he ran away from his well-to-do family to join a traveling circus. ... Fishing wire looped around his blackened eye sockets, a set of painfully inserted, shark-like teeth producing a hideous grin, a ... They sustain themselves through the blood of the weak...but they are vulnerable to those with the determination to resist them ... Initially hired as a roustabout, he soon began serving as a "spieler" (a barker at sideshows) and by 1901, at the age of 21, ...
Aged people who are a hindrance on the trail are abandoned. - Leenaars et al., Suicide in Canada When food is not sufficient, ... The research is neither complete nor conclusive to allow for a determination of whether infanticide was a rare or a widely ... Wood, Shannon Raye (1984). Tooth wear and the sexual division of labor in an Inuit population (PDF) (Thesis). University of ... After about 1350, the climate grew colder during the period known as the Little Ice Age. During this period, Alaskan natives ...
Barrels for aging wines, sherry, and spirits such as brandy, Irish whiskey, Scotch whisky and Bourbon whiskey, are made from ... The leaves are evergreen, with bristle-like extensions on the teeth. Potential records of Quercus have been reported from Late ... but until recently the larger emphasis on this narrow approach prevented systematists from making large-scale determinations ... Wide, quarter-sawn boards of oak have been prized since the Middle Ages for use in interior panelling of prestigious buildings ...
The fall of the evil ones) And all the oxen feared them and were affrighted at them, and began to bite with their teeth and to ... supposed to have been lost for ages; but discovered at the close of the last century in Abyssinia; now first translated from an ... a very important aspect for the determination of the dates of religious feasts); an interest in the angelic world that involves ...
The comb teeth have been interpreted as the crew on the boat where, in locations such as Scandinavia and Karelia, the motif ... Iijoki River (Finland, 3500-2900 BCE) - one of the most abundant sources of Stone Age pit houses, with over 300 houses and ... prevent definitive determinations of its nature. Some rock paintings incorporate multiple motifs, further complicating ... Harpoons and points were significant weaponry employed within Stone Age cultures. Discovered Subneolithic weapons have been ...
While she is energetic and always has a smile on her face, she also has a short temper and fierce determination. She never ... She married a no-good gambling addict at age 18, and divorced him at 20. After her divorce, she decided that being normal just ... he is also shown to have buck teeth. Miho Obana The author appears as herself in some of the quiz-show styled recap episodes in ... Mayu Tobita (飛田まゆ, Tobita Mayu) Voiced by: Kaori Asoh (Japanese); Leah Clark (English) A young singer, about the same age as ...
The determination was made based on a confidential survey of employees conducted by Workplace Dynamics, an independent research ... Near the museum's lobby, a diorama depicts two ancient-age children playing near a stream, unmolested by nearby dinosaurs. ... long skull with 53 teeth, was recovered from the northern Colorado portion of Morrison Formation. The Elizabeth Streb Peroutka ...
But for Obree to reach that position to challenge the Olympic gold medal winner was a victory of determination over adversity." ... Flanagan, Martin (12 July 2008). "Federer v Nadal as good as sport gets". The Age. Retrieved 14 February 2009. Bodo, Peter (30 ... "Vettel and Alonso's rivalry becomes one with real teeth". BBC Sport. Retrieved 25 May 2015. The two teammates at Mercedes were ... ISBN 978-1-59228-883-0. Dyer, R. A. (2003). Hustler Days: Minnesota Fats, Wimpy Lassiter, Jersey Red, and America's Great Age ...
Their determination to fight by boarding, rather than employing cannon fire at a distance, proved a disadvantage for the ... The 2007 film Elizabeth: The Golden Age contains a heavily fictionalized retelling of the Spanish Armada and the Battle of ... her teeth black, her red wig slightly askew, dangling a toy sword and wearing an absurd little piece of parade armor like ... sfn error: no target: CITEREFMartinParker1989 (help) Brian Fagan, The Little Ice Age: How Climate Made History 1300-1850, New ...
"Tooth Loss in Adults (Age 20 to 64)". National Institute of Dental and Craniofacial Research. February 2018. Retrieved March 2 ... Johnson A, Wildgoose DG, Wood DJ (October 2002). "The determination of freeway space using two different methods". Journal of ... Facial muscles on the cheeks and lips also lose their support as teeth are lost, contributing to an 'aged' appearance of the ... A complete denture (also known as a full denture, false teeth or plate) is a removable appliance used when all teeth within a ...
Leslie, P. H., Perry, J. S., Watson, J. S., & ELTON, C. (1946). The Determination of the Median Body‐Weight at which Female ... The most commonly heard in domestic rats is bruxing, or teeth-grinding, which is most usually triggered by happiness, but can ... Although pups produce ultrasounds around any other rats at the age of 7 days, by 14 days old they significantly reduce ... However, as the rats age, the tendency to chirp appears to decline. Brown rats also produce communicative noises capable of ...
Age Determination by Teeth [‎2]‎. Age Factors [‎14]‎. Age Groups [‎2]‎. Aged [‎104]‎. ...
Conclusions Demirjians methods overestimation of actual chronological tooth age reveals the need for population-specific ... A subgroup analysis by age revealed that boys and girls between the ages of 5 to 14 were given a dental age estimate that was ... Differences between underestimated dental ages and actual chronological ages were lower for male and female 15- and 16-year-old ... While the accuracy for evaluating dental age using Demirjians method compared to childrens chronological age has been ...
The study confirmed the initial determination that the remains belonged to a woman who died between 45 and 50 years of age ... Green stone inlays were found on four of her front teeth and one canine tooth. Elites at Palenque, however, do not have dental ... It had been previously suggested that she held elite status, based upon the modification of her skull and teeth. Núñez Enríquez ... Examination of the womans teeth also showed possible signs of malnutrition in early life, dental cavities, and tartar buildup ...
... of adults aged 45-64 had a full set of permanent teeth (excluding third molars) (Figure 3). Among adults aged 25-44, tooth ... is presented differently in this report because 2009-2010 NHANES data did not provide a determination of reasons for tooth loss ... Tooth retention varied by race and ethnicity and poverty level among adults aged 25-64.. Fifty-three percent of adults aged 25- ... The age groups used in this report approximate the age groups used for the Healthy People 2020 oral health objectives. Key age ...
Shark teeth tend to end up in really time averaged assemblages, and the ages of some fraction of the assemblages are difficult ... and used up to date age determinations for every occurrence, they cant say anything about it one way or another. In addition, ... the teeth were just the smaller teeth of large animals. To test this the authors compared the teeth from the Gatun Formation to ... the teeth were just the smaller teeth of large animals. To test this the authors compared the teeth from the Gatun Formation to ...
Age Determination by Teeth E1.370.600.24.650.500 E5.41.650.500 E6.623.500 AIDS Arteritis, Central Nervous System C14.907. ... Sex Determination Analysis E1.370.701 Sex Determination by Skeleton E1.370.701.500 E1.370.225.996.500 E5.200.996.500 E5.393. ... National Institute on Aging (U.S.) I1.409.137.500.600.480.465 I1.409.418.750.600.480.465 N3.540.52.750.465 National Institute ... Single-Tooth E6.780.345.593.185 E6.780.346.593.185 Dental Models J1.897.280.500.545.129.200 L1.178.820.90.545.129.200 Dental ...
Complete replacement of the deciduous teeth by the permanent teeth occurs at about age 12 years (excluding the wisdom teeth or ... Age determination techniques have been developed to enable the forensic anthropologists to study the surface of the pubic ... Tooth coronal index and pulp/tooth ratio in dental age estimation on digital panoramic radiographs-a comparative study. ... Tooth formation and tooth eruption. Teeth undergo maturational changes in their size, shape, calcification, and eruption. [32] ...
Based on the coloring of the bones - and the wear and tear on the teeth - Zick suggested they probably date many years back. ... Zick said a forensic anthropologist would be arriving sometime next week to assess the bones for age and origin. If the bones ... the council has already been notified and a stop-work order is in effect on the property pending a conclusive determination. No ...
Palavras-chave : forensic anthropology; age determination by teeth; forensic dentistry.. · texto em Inglês · pdf em Inglês ... LOPES, Juliana Ribeiro et al. Age estimation by teeth periodontosis and transparency: accuracy of Lamendins method on a ... Then, these variables are inserted in an equation to estimate the individuals age. The sample comprised 49 teeth obtained from ... Where, A = age; P = (periodontosis height x 100)/root height; and T = (transparency height x 100)/root height. Conclusions: The ...
The coefficients of determination are lower than in the original study (between 0.03 and 0.39). In the linear regression ... Dental age assessment by the pulp/tooth area proportion in cone beam computed tomography: is medico-legal application for age ... with statistically significant differences between the chronological age and the dental age, estimated by the pulp/ tooth ... based on the individual features of the teeth. One of the identification criteria to be established is the chronological age. ...
Kirkpatrick, R. D., & Sowls, L. K. (1962). Age Determination of the Collared Peccary by the Tooth-Replacement Pattern. The ...
Age affects cattle value. Both replacement and market cows typically decline in value as they age. When possible, cattle birth ... In this way, the exact ages of animals will be known. When cattle age records are ... Knowing cattle age is useful for both cattle management and marketing. ... Determination of age by teeth in domestic animals. In: Yearbook of the United States Department of Agriculture: 1898. Page 667 ...
Age Determination by Teeth - Preferred Concept UI. M0000559. Scope note. A means of identifying the age of an animal or human ... A means of identifying the age of an animal or human through tooth examination.. ... Age Determination by Teeth Descriptor Spanish: Determinación de la Edad por los Dientes Spanish from Spain ...
The age-at-death it estimated to 1 to 7 years;. - an immature clavicle fragment (uncertain determination) (GPA-11-Wb); in any ... The age-at-death is estimated between 1 and 3 years, based on the degree of mineralization and eruption of the teeth. The ... the Middle Bronze Age (Bz A2-B1 then Bz C) and the Late Bronze Age (Bz D and Ha A2-B1). ... dating to the Bronze Age. The excavation also revealed periods of human activity during the Late Neolithic/Early Bronze Age ( ...
The results were compared with age-matched 103 female dental patients (BMI 19.8±2.3 kg/m2, age 15.0±1.8, p=0.746) treated in a ... The results were compared with age-matched 103 female dental patients (BMI 19.8 ± 2.3 kg/m2, age 15.0 ± 1.8, p = 0.746) treated ... similarly to the number of decayed teeth D, filled teeth F and PCR were detected (p,0.05). Conclusions: Although the obtained ... 1.9±2.1, p=0.005), erosive tooth wear (BEWE 18.9% vs. 2.9%, p,0.001), less efficient in controlling plaque (PCR 43.8% vs. 13.7 ...
Counting cementum annuli in the teeth was shown to be an effective method of age determination. The length and weight of male ... There was no advantage in age or body size in obtaining prey species. Generally, the coat skin and tooth condition of cats on ... The relationship between age and length in adult males suggests that greater length offers an advantage to longevity. The ... A coat-colour variant was found at high frequency only after the Middle Ages, suggesting that directed breeding of cats ...
Everything you need to know to age well this Autumn ... Our determination to age as well as possible has introduced ... ️Change the way you age 📚The Age-Well Project + Age-Well Plan ⭐️Get tips & recipes on our blog - sign up ⬇️ ... Welcome to The Age-Well Project. Welcome to The Age-Well Project!. Here youll find easy changes for a longer, happier life. ... WHY YOU NEED TO KNOW ABOUT CARB QUALITY AND DARK-CHOCOLATE-SALTED-PEANUT FLAPJACKS - The Age-Well Project says: ...
The accurate determination of time since death, or postmortem interval (PMI), can be critical in the investigation of ... This assay was then used to cluster ages of pulp samples by color. The two assays, used in combination with one another, can ... To provide a quantitative measure of progressive color changes, analysis of digital photographs of each tooths pulp were used ... In addition to differences in RNA decay rates, morphological changes were observed in the pulp as it aged postmortem. ...
According to the Louisiana Department of Health, Medicaid recipients up to and including age 20 who have "only crowded or ... Each state makes that determination. The majority of states offer emergency dental services, but fewer states cover ... crooked teeth, spacing problems or under/overbite are not covered for braces unless identified as medically necessary." ...
... a possible method for a more accurate determination of age at death? Z Rechtsmed 1990;103:457-62. ... To estimate the dental age of single-rooted teeth using aspartic acid racemization. Material and Methods: Thirty anterior teeth ... Five samples showed actual age to be similar with estimated age. The difference of age was 0.10 ± 0.62 years. The difference of ... Figure 5 Age estimation using aspartic acid against of teeth in the linear regression line.. Click here to view. ...
... are proud to share the hard work and determination required to make a smile special and functional for individuals of all ages ... Although braces and Invisalign physically move a patients teeth to the desired position, it is the adherence and hard work of ...
Rojos documentary BAG OF TEETH will be screened at the reception.. These works are a privileged glimpse into the covert world ... With film and photos DARK MATCH explores the brutality, grace and determination of Indie Wrestlers. See for ... of aspiring pro-wrestlers, featuring students and trainers from N.A.W. ranging in age from early teens to the "old timers" in ... more information about New Age of Wrestling, a group that raises money for charities. ...
J: Its an old reality: If the public demands plastic resto- rations that dont leach toxins and that adhere to the tooth with ... In general, he appears to be an overweight, friendly youngster who is cooperative and who appears to be his stated age diabetes ... Patients and parents should make this determination with the assistance of a psychologist and surgeon. The transducer is ... A noted warning of the aging approach affecting an endocrine gland is menopause and the declivity of ovarian go womens health ...
... and while chronological age should not be the final determination for the dental implant process, age is used as a general ... The dental implant process allows your dentist to restore a lost tooth or place a restoration where a biological tooth has ... The dental implant itself is a small post embedded in gum tissue where a tooth is missing. It is intended to form a supportive ... For more information about dental implants or other tooth replacement solutions, contact our team today. ...
Fresh hDPSCs were isolated from third molar teeth that had been extracted from healthy, nonsmoking adults (aged 22 years) at ... Determination of in vitro ALP contents of differentiated hDPSCs and hBMSCs. To compare differentiation ability between hDPSCs ... Application of induced pluripotent stem cells in generation of a tissue-engineered tooth-like structure. Tissue Eng Part A 18, ... Human dental pulp stem cells (hDPSCs) can be easily harvested in large quantities from discarded extract teeth during dental ...
... the determination of stable isotope ratios of strontium and oxygen in tooth enamel, and archaeological analysis of radiocarbon ... Late copper age/ Bronze Age Spain. I2a2 x 3. Sweden. I1, R1a, R1b. Italy: I2a1 (EBA). This certainly doesnt appear to mirror ... The most likely fact is that (unlike today, or the middle ages) in the Bronze Age, high status men had a huge amount of ... The most likely fact is that (unlike today, or the middle ages) in the Bronze Age, high status men had a huge amount of ...
  • 4. Development of two age estimation models for buccal swab samples based on 3 CpG sites analyzed with pyrosequencing and minisequencing. (
  • 5. DNA methylation age estimation in blood samples of living and deceased individuals using a multiplex SNaPshot assay. (
  • 6. Development of the VISAGE enhanced tool and statistical models for epigenetic age estimation in blood, buccal cells and bones. (
  • 11. Postmortem age estimation via DNA methylation analysis in buccal swabs from corpses in different stages of decomposition-a "proof of principle" study. (
  • 14. Age Estimation Based on DNA Methylation Using Blood Samples From Deceased Individuals. (
  • 15. DNA methylation analysis of ELOVL2 gene using droplet digital PCR for age estimation purposes. (
  • 17. Age prediction in living: Forensic epigenetic age estimation based on blood samples. (
  • Age estimation was initially conducted using the degree of dental attrition with methods of Takei and Yun, and was estimated to be approximately 40 years. (
  • The age estimation was then performed using the developmental status of the lower second and third molars. (
  • The age was estimated to be approximately 16 years using Lee's method which was consistent with the estimation using forensic anthropology. (
  • Estimation of age at death is an essential part of reconstructing information from skeletal material. (
  • The aim of the investigation was to reconstruct the chronological age of an archaeological sample from Croatia using cranial skeletal remains as well as to make an evaluation of the methods used for age estimation. (
  • Estimation of age is an important requisite in forensic, judicial and criminal proceedings. (
  • 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 ). (
  • A schematic of a bovine skull is shown in Figure 1 to depict the locations of the three major teeth types: incisors, premolars, and molars. (
  • The premolars and molars are collectively known as cheek teeth. (
  • The two major approaches used to estimate dental age are the stage of tooth eruption in the oral cavity and the pattern of tooth development observed in radiographs [ 5 , 6 ]. (
  • Measuring the stage of dental eruption is not a currently preferred method because tooth eruption is a discontinuous process, in contrast to tooth calcification, which is an ongoing process [ 7 ]. (
  • Thus, tooth formation, for the reasons mentioned above, should be considered as a more reliable criterion for determining dental maturation than tooth eruption. (
  • For the supernumerary tooth group, surgical intervention was more likely to occur when malocclusion (p tooth eruption disturbances (p dentigerous cysts were absent (p = 0.006). (
  • When tooth eruption disturbances (p = 0.002) and dentigerous cysts (p (
  • Incisor eruption occurs in a distinct pattern over time and provides information about the approximate age of an animal. (
  • A subgroup analysis by age revealed that boys and girls between the ages of 5 to 14 were given a dental age estimate that was significantly more advanced than their chronological age. (
  • Conclusions Demirjian's method's overestimation of actual chronological tooth age reveals the need for population-specific standards to better estimate the rate of human dental maturation. (
  • 7. Detection and evaluation of DNA methylation markers found at SCGN and KLF14 loci to estimate human age. (
  • When cattle age records are not available, dentition may be used to estimate cattle age. (
  • It is common for cattle of unknown age to be "mouthed" by a veterinarian or other trained person to estimate their ages when marketed. (
  • Then, these variables are inserted in an equation to estimate the individual's age. (
  • Mineralization Table of Nicodemo, Moraes and Medici Filho (1974) to estimate age held by undergraduate Dentistry students at the Federal University of Paraíba. (
  • The linear regression analysis revealed that it is possible to estimate the actual age from the maximum age stipulated by training students with 88.1% success rate. (
  • These tests are used in different situations as to estimate the age of offenders, including, in the case of Brazil, in the age of criminal responsibility those aged 18 years or older, in addition to the adoption of children, obtaining documents, illegal immigrants, and for retirement purposes, in which this professional contributes to the enforcement of effective measures of the law [7]. (
  • The main purpose of the examination was to age estimate the remains and record any dental characteristics to aid full-body reconstruction and life history data collection. (
  • Comparing the decay rates of a large, labile segment of B-actin RNA and a smaller, more stable, non-overlapping segment of the same RNA from tooth pulp, we were able to estimate PMI values of pigs buried within a shallow grave for up to 84 days. (
  • The study was done after twenty-one days on postmortem mice, a control of sham operation and the variable of tooth extraction 3 right maxillary differences were in gray matter, a part of the central nervous system, which is involved in sensory perception and muscle control [ 5 ]. (
  • Estimating postmortem interval using RNA degradation and morphological changes in tooth pulp. (
  • The accurate determination of time since death, or postmortem interval (PMI), can be critical in the investigation of suspicious deaths. (
  • In addition to differences in RNA decay rates, morphological changes were observed in the pulp as it aged postmortem. (
  • While the accuracy for evaluating dental age using Demirjian's method compared to children's chronological age has been extensively studied in recent years, the results currently available remain controversial and ambiguous. (
  • Weighted mean difference (WMD) with corresponding 95% confidence interval (95% CI) was used to evaluate the applicability of Demirjian's method for estimating chronological age in children. (
  • Differences between underestimated dental ages and actual chronological ages were lower for male and female 15- and 16-year-old subgroups, though a significant difference was found in the 16-year-old subgroup. (
  • It is generally accepted that several indicators of somatic development, including skeletal, dental and menarche ages, somatic maturity, sexual maturation, body height and weight, can be used to determine the chronological age and to assess the growth and development of children [ 2 ]. (
  • 2. Chronological age prediction based on DNA methylation: Massive parallel sequencing and random forest regression. (
  • 16. DNA methylation in ELOVL2 and C1orf132 correctly predicted chronological age of individuals from three disease groups. (
  • Statistical analysis was performed with t and paired t tests, comparing chronological and estimated ages. (
  • Children and adolescents may react adversely at different ages to themes of crime, suicide, drug and alcohol dependence, death, serious illness, family breakdown, death or separation from a parent, animal distress or cruelty to animals, children as victims, natural disasters and racism. (
  • Dental sealants were more prevalent among non-Hispanic white adolescents (56%) compared with non-Hispanic black adolescents (32%) aged 13-15. (
  • Prevalence of untreated dental caries among children and adolescents, by age, race and ethnicity, and poverty level: United States, 2009-2010. (
  • Among children aged 6-9 years, 17% had untreated dental caries, and among adolescents aged 13-15, 11% had untreated dental caries. (
  • 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. (
  • 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 ). (
  • A similar pattern was found among adolescents aged 13-15, but the difference was not statistically significant. (
  • Dental sealant prevalence was significantly lower for non-Hispanic black adolescents (32%) compared with non-Hispanic white adolescents (56%), among those aged 13-15. (
  • Severely ill adolescents with AN are at risk of extremely low body weight, macro/micronutrient deficiencies ( 5 ), and combined with diminished salivation and neglecting of hygiene habits, protection for dental or periodontal tissues may be lost at an older age ( 6 - 8 ). (
  • A means of identifying the age of an animal or human through tooth examination. (
  • Examination of the woman's teeth also showed possible signs of malnutrition in early life, dental cavities, and tartar buildup from a diet based on corn and animal proteins. (
  • 15 kg/m 2 , mean age 14.9 ± 1.8), the dental status has been examined regarding the occurrence of caries lesions using Decay Missing Filling Teeth (DMFT), erosive wear as Basic Erosive Wear Examination (BEWE), gingival condition as Bleeding on Probing (BOP) and plaque deposition as Plaque Control Record (PCR). (
  • Various methods employed for determining dental age are based on the degree of the calcification observed in radiographic examinations of permanent teeth [ 10 - 14 ]. (
  • Stages of tooth formation, however, are less affected by local factors and can be assessed using radiographs on a broader age range of children [ 9 ]. (
  • Since dawn of humanity, man seeks through different ways to determine factors involved in his development, as well as sex, age, height, ancestry and in vivo or post-mortem individual characteristics. (
  • Absolute age of oceanography announced the factors that oes aar is a cost-effective method very long history. (
  • For this purpose, four age calculation methods were used: palatal suture closure, occlusal tooth wear, tooth root translucency and pulp/tooth area ratio. (
  • Cramer's V test showed high association (0.677) between age determination results using palatal suture closure and occlusal tooth wear, and low association (0.177) between age determination results using palatal suture closure and pulp/tooth area ratio. (
  • 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. (
  • Tooth retention varied by race and ethnicity and poverty level among adults aged 25-64. (
  • 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. (
  • It might be argued, for example, that individuals of C. megalodon evolved increasing body size over time, meaning that the teeth from the Gatun Formation belonged to small adults rather than juveniles. (
  • When the teeth from Panama (both from adults and juveniles) were compared to C. megalodon teeth from the older Calvert Formation of Maryland (14 million years old) and the young Bone Valley Formation of Florida (5 million years old), however, they did not find any sign that C. megalodon was becoming larger over time. (
  • Conclusions: The method is accurate only for young adults but it could be used with caution in individuals between 45 and 60 years of age to assist in estimating an age range. (
  • In a representative sample of adults in the United States, who had six teeth or more removed experienced a comorbid of depression and anxiety [ 3 ]. (
  • Over the years paleontologists have identified several sites relatively rich in juvenile C. megalodon teeth, including the 10 million year old (Miocene) Gatun Formation of Panama. (
  • Myliobatidae, Myliobatiformes) is reported herein from the Miocene deposits along Calvert Cliffs, Maryland, U.S.A. Deformed myliobatid tooth plates like this, either fossil or modern, are exceedingly rare. (
  • In the case study presented here, we describe a Miocene epoch lower tooth plate of the extant myliobatid genus, Aetomylaeus sp. (
  • Yan J, Lou X, Xie L, Yu D, Shen G, Wang Y (2013) Assessment of Dental Age of Children Aged 3.5 to 16.9 Years Using Demirjian's Method: A Meta-Analysis Based on 26 Studies. (
  • Determination of the range of intervention timing for supernumerary teeth using the Korean health insurance review and assessment service database. (
  • Dental age assessment: are Demirjian's standards appropriate for southern Chinese children? (
  • Relative and absolute age assessment was determined by the rate. (
  • A collection of C. megalodon teeth from the 10 million year old Gatun Formation of Panama. (
  • To test this the authors compared the teeth from the Gatun Formation to associated tooth sets of adult and juvenile C. megalodon to make sure they were properly interpreting the position of the teeth and the life stage they represented. (
  • Sequentially, 3 panoramic radiographs were exposed (actual age known only by teachers), and students were instructed to interpret them from the selection of 2-4 teeth under formation. (
  • Our aim is not merely to document such an occurrence in this taxon, but also to highlight the extent to which such a deformity can affect replacement tooth formation. (
  • This assay was then used to cluster ages of pulp samples by color. (
  • A meta-analysis was conducted on 26 studies with a total of 11,499 children (5,301 boys and 6,198 girls) aged 3.5 to 16.9 years. (
  • The aim of this study was to evaluate the effect of breathing exercise using bubble blower on anxiety and pain during inferior alveolar nerve block (IANB) in children aged 7 to 10 years. (
  • Local anesthesia injection to a child with high levels of anxiety has been found as the most stressful procedure without considering the age, gender, or years of professional experience for general dentists and pedodontists [ 5 ]. (
  • The study confirmed the initial determination that the remains belonged to a woman who died between 45 and 50 years of age sometime between A.D. 800 and 850, based upon the style of the pottery that had been buried with her. (
  • Approximately one in four children aged 3-5 and 6-9 years living in poverty had untreated dental caries. (
  • In 2009-2010, 14% of children aged 3-5 years had untreated dental caries ( Figure 1 ). (
  • 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. (
  • Based on the coloring of the bones - and the wear and tear on the teeth - Zick suggested they probably date many years back. (
  • Age determination is of particular interest in orthodontics and paediatric dentistry for making accurate diagnoses and treatment strategies [ 1 ]. (
  • Age Determination of the Collared Peccary by the Tooth-Replacement Pattern. (
  • Typical cattle ages when permanent incisors erupt, develop, and wear. (
  • Significant dental caries, erosive tooth wear, and loss of periodontal health were observed in other studies considering adult AN subjects ( 8 , 9 ). (
  • This study aimed to identify the frequency of complications during the diagnosis , observation , and treatment of supernumerary teeth or odontomas and evaluate the relationship between complications and the timing of surgical intervention. (
  • however, the correlation between estimated and actual ages varied considerably among radiographs, and maximum estimated values were closer to the actual age than minimum values. (
  • Specifically, teeth have a correlation with parts of the brain. (
  • Utilizing structural magnetic resonance imaging, voxel-wise analysis and mice with different genetic strains, volumetric differences of 160 brain regions after teeth extraction were studied. (
  • The age at diagnosis correlated with the maturity period of the teeth at the corresponding location . (
  • Demirjian and his co-workers proposed dental maturity scores from a French-Canadian population and this has served as a reference dataset for evaluation of age for various population groups. (
  • The marine fossil site preserves a shallow habitat containing numerous C. megalodon teeth and a relative paucity of whale bones (prey for adult sharks that their young probably would not have fed on), and for the first time a team of paleontologists have tested the idea that his place was once a haven for the young predators. (
  • These temporary teeth eventually fall out and are replaced with 32 permanent or adult teeth as an animal matures. (
  • Methods: The authors present two measurements in single-rooted teeth: the peridontosis and transparency of the root. (
  • The paraventricular nucleus of the hypothalamus is a significant source of projection in the nucleus accumbens and its brain matter volume is decreased due to tooth loss [ 10 ]. (
  • A reason why oral status is vital at this age may be explained by their developmental period when the permanent teeth mineralization and periodontal tissue are formulated ( 4 ). (
  • Pediatric dentists should conduct timely clinical checks and periodic follow-ups to prevent complications and unnecessary orthodontic treatments in patients with supernumerary teeth or odontomas . (
  • Considering how tooth loss may lead to eventual nerve loss and several motor/emotional complications, this review analyzes how tooth loss affects the physical components of the brain as well as the cognitive impacts. (
  • It had been previously suggested that she held elite status, based upon the modification of her skull and teeth. (
  • Locations and types of teeth in a bovine skull. (
  • The frequency of supernumerary teeth was the highest in the anterior region, followed by the premolar and molar regions. (
  • A coat-colour variant was found at high frequency only after the Middle Ages, suggesting that directed breeding of cats occurred later than with most other domesticated animals. (
  • 12. Epigenetic age signatures in bones. (
  • Zick said a forensic anthropologist would be arriving sometime next week to assess the bones for age and origin. (
  • Temporary teeth are easily distinguishable from permanent teeth. (
  • They are much smaller and whiter than permanent teeth. (
  • Temporary teeth are also more triangular in appearance than newly developed permanent teeth, although permanent teeth become more triangular over time. (
  • Figure 4 shows temporary teeth in the corner positions in comparison to permanent teeth in the intermediate and central incisor positions. (
  • Typical cattle ages when permanent premolars erupt. (
  • Dentition is the development of teeth within the mouth. (
  • Determination of age on amino acid dating in sediment, such as a cost-effective method development of scripps institute of scripps institution of fossil bone samples. (
  • The results were compared with age-matched 103 female dental patients (BMI 19.8 ± 2.3 kg/m 2 , age 15.0 ± 1.8, p = 0.746) treated in a public University dental clinic. (
  • Rather, the deformity exhibited by USNM PAL 726325 gives every indication that successive similarly deformed teeth came about as a result of a persistent anatomical deformity of the dental lamina. (
  • Unlike radiometric dating of fossil ostracode shells of human evolution and teeth from five. (
  • What they found was that the teeth truly did come from small individuals and fell within the range expected for juvenile sharks. (
  • 18. Estimating breast tissue-specific DNA methylation age using next-generation sequencing data. (
  • Simple methods like palatal suture closure can provide data about age at death for large number of individuals, but with less accuracy. (
  • More complex methods which require qualified and trained personnel can provide data about age for a smaller number of individuals, but with more accuracy. (
  • Green stone inlays were found on four of her front teeth and one canine tooth. (
  • 1. Proof of concept study of age-dependent DNA methylation markers across different tissues by massive parallel sequencing. (
  • Anthropometric study of the upper lip and the nose of infants less than a year of age. (
  • This report focuses on key Healthy People objectives covering select age groups by race and ethnicity and poverty status from 2009 to 2010. (
  • Cramer's V test was used to test the association between the age calculation methods. (
  • Analyses of cephalometry (n = 20), taurodontism (n = 47), caries (n = 47), enamel defects (n = 48), soft tissue anomalies (n = 48), and dental age (n = 41) were performed on the cystinosis group, and compared with age- and sex-comparable controls or standards. (
  • Dental age can be estimated from a dataset that has been prepared from a similar or a different population group. (
  • See for more information about New Age of Wrestling, a group that raises money for charities. (
  • These are composed of racemization with amino acid racemization aar is the racemization age-dating of human evolution and northeastern north carolina. (
  • Murray is full determination, full spirit, a pure fighter. (
  • An isolated and deformed lower tooth plate of an eagle ray ( Aetomylaeus sp. (
  • According to the Louisiana Department of Health, Medicaid recipients up to and including age 20 who have "only crowded or crooked teeth, spacing problems or under/overbite are not covered for braces unless identified as medically necessary. (
  • From the consistency in the deformed shape of each tooth, it would appear as though the dental lamina retained this anomalous shape at least throughout the time represented by the age of the tooth plate. (
  • During the observation period, the age at diagnosis of supernumerary teeth and odontomas was analyzed using major diagnostic codes , and the treatment codes were used to determine the interval between diagnosis and surgical intervention. (