Tooth Abnormalities: Congenital absence of or defects in structures of the teeth.Tooth: One of a set of bone-like structures in the mouth used for biting and chewing.Tooth Loss: The failure to retain teeth as a result of disease or injury.Tooth Germ: 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)Tooth, Deciduous: The teeth of the first dentition, which are shed and replaced by the permanent teeth.Tooth Crown: 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)Tooth Root: 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)Tooth Eruption: 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)Tooth, Supernumerary: 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.Tooth Wear: Loss of the tooth substance by chemical or mechanical processesTooth Extraction: The surgical removal of a tooth. (Dorland, 28th ed)Tooth, Nonvital: A tooth from which the dental pulp has been removed or is necrotic. (Boucher, Clinical Dental Terminology, 4th ed)Molar: 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)Tooth, Impacted: A tooth that is prevented from erupting by a physical barrier, usually other teeth. Impaction may also result from orientation of the tooth in an other than vertical position in the periodontal structures.Tooth Discoloration: Any change in the hue, color, or translucency of a tooth due to any cause. Restorative filling materials, drugs (both topical and systemic), pulpal necrosis, or hemorrhage may be responsible. (Jablonski, Dictionary of Dentistry, 1992, p253)Tooth, Unerupted: A normal developing tooth which has not yet perforated the oral mucosa or one that fails to erupt in the normal sequence or time interval expected for the type of tooth in a given gender, age, or population group.Incisor: 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)Odontogenesis: 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).Tooth Cervix: The constricted part of the tooth at the junction of the crown and root or roots. It is often referred to as the cementoenamel junction (CEJ), the line at which the cementum covering the root of a tooth and the enamel of the tooth meet. (Jablonski, Dictionary of Dentistry, 1992, p530, p433)Dental Enamel: A hard thin translucent layer of calcified substance which envelops and protects the dentin of the crown of the tooth. It is the hardest substance in the body and is almost entirely composed of calcium salts. Under the microscope, it is composed of thin rods (enamel prisms) held together by cementing substance, and surrounded by an enamel sheath. (From Jablonski, Dictionary of Dentistry, 1992, p286)Tooth Exfoliation: Physiologic loss of the primary dentition. (Zwemer, Boucher's Clinical Dental Terminology, 4th ed)Tooth Avulsion: Partial or complete displacement of a tooth from its alveolar support. It is commonly the result of trauma. (From Boucher's Clinical Dental Terminology, 4th ed, p312)Fused Teeth: Two teeth united during development by the union of their tooth germs; the teeth may be joined by the enamel of their crowns, by their root dentin, or by both.Cuspid: The third tooth to the left and to the right of the midline of either jaw, situated between the second INCISOR and the premolar teeth (BICUSPID). (Jablonski, Dictionary of Dentistry, 1992, p817)Tooth DiseasesTooth Calcification: The process whereby calcium salts are deposited in the dental enamel. The process is normal in the development of bones and teeth. (Boucher's Clinical Dental Terminology, 4th ed, p43)Bicuspid: One of the eight permanent teeth, two on either side in each jaw, between the canines (CUSPID) and the molars (MOLAR), serving for grinding and crushing food. The upper have two cusps (bicuspid) but the lower have one to three. (Jablonski, Dictionary of Dentistry, 1992, p822)Tooth Ankylosis: Solid fixation of a tooth resulting from fusion of the cementum and alveolar bone, with obliteration of the periodontal ligament. It is uncommon in the deciduous dentition and very rare in permanent teeth. (Jablonski's Dictionary of Dentistry, 1992)Dental Pulp: A richly vascularized and innervated connective tissue of mesodermal origin, contained in the central cavity of a tooth and delimited by the dentin, and having formative, nutritive, sensory, and protective functions. (Jablonski, Dictionary of Dentistry, 1992)Tooth Erosion: Progressive loss of the hard substance of a tooth by chemical processes that do not involve bacterial action. (Jablonski, Dictionary of Dentistry, 1992, p296)Tooth Socket: A hollow part of the alveolar process of the MAXILLA or MANDIBLE where each tooth fits and is attached via the periodontal ligament.Maxilla: One of a pair of irregularly shaped bones that form the upper jaw. A maxillary bone provides tooth sockets for the superior teeth, forms part of the ORBIT, and contains the MAXILLARY SINUS.Tooth Replantation: Reinsertion of a tooth into the alveolus from which it was removed or otherwise lost.Dentin: The hard portion of the tooth surrounding the pulp, covered by enamel on the crown and cementum on the root, which is harder and denser than bone but softer than enamel, and is thus readily abraded when left unprotected. (From Jablonski, Dictionary of Dentistry, 1992)Tooth Resorption: Resorption of calcified dental tissue, involving demineralization due to reversal of the cation exchange and lacunar resorption by osteoclasts. There are two types: external (as a result of tooth pathology) and internal (apparently initiated by a peculiar inflammatory hyperplasia of the pulp). (From Jablonski, Dictionary of Dentistry, 1992, p676)Dental Caries: Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp.Dentition: The teeth collectively in the dental arch. Dentition ordinarily refers to the natural teeth in position in their alveoli. Dentition referring to the deciduous teeth is DENTITION, PRIMARY; to the permanent teeth, DENTITION, PERMANENT. (From Jablonski, Dictionary of Dentistry, 1992)Mandible: The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.Root Canal Therapy: A treatment modality in endodontics concerned with the therapy of diseases of the dental pulp. For preparatory procedures, ROOT CANAL PREPARATION is available.Odontometry: Measurement of tooth characteristics.Abnormalities, MultipleTooth Demineralization: A tooth's loss of minerals, such as calcium in hydroxyapatite from the tooth matrix, caused by acidic exposure. An example of the occurrence of demineralization is in the formation of dental caries.Dentition, Permanent: The 32 teeth of adulthood that either replace or are added to the complement of deciduous teeth. (Boucher's Clinical Dental Terminology, 4th ed)Dental Restoration, Permanent: A restoration designed to remain in service for not less than 20 to 30 years, usually made of gold casting, cohesive gold, or amalgam. (Jablonski, Dictionary of Dentistry, 1992)Anodontia: Congenital absence of the teeth; it may involve all (total anodontia) or only some of the teeth (partial anodontia, hypodontia), and both the deciduous and the permanent dentition, or only teeth of the permanent dentition. (Dorland, 27th ed)Tooth Preparation, Prosthodontic: The selected form given to a natural tooth when it is reduced by instrumentation to receive a prosthesis (e.g., artificial crown or a retainer for a fixed or removable prosthesis). The selection of the form is guided by clinical circumstances and physical properties of the materials that make up the prosthesis. (Boucher's Clinical Dental Terminology, 4th ed, p239)Periodontal Ligament: The fibrous CONNECTIVE TISSUE surrounding the TOOTH ROOT, separating it from and attaching it to the alveolar bone (ALVEOLAR PROCESS).Alveolar Process: The thickest and spongiest part of the maxilla and mandible hollowed out into deep cavities for the teeth.Age Determination by Teeth: A means of identifying the age of an animal or human through tooth examination.Cleft Palate: Congenital fissure of the soft and/or hard palate, due to faulty fusion.PubMed: A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Mice, Knockout: Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes.Palate: The structure that forms the roof of the mouth. It consists of the anterior hard palate (PALATE, HARD) and the posterior soft palate (PALATE, SOFT).Books

Dosage requirement of Pitx2 for development of multiple organs. (1/272)

Pitx2 is a homeodomain transcription factor that is mutated in Rieger syndrome, a haploinsufficiency disorder affecting eyes and teeth. Pitx2 also has a postulated role in left-right axis determination. We assessed the requirements for Pitx2 directly by generating hypomorphic and null alleles. Heterozygotes for either allele have eye abnormalities consistent with Rieger syndrome. The ventral body wall fails to close in embryos homozygous for the null allele, leaving the heart and abdominal organs externalized and the body axis contorted. In homozygotes for either allele, the heart tube undergoes normal, rightward looping and the stomach is positioned normally. In contrast, homozygotes for both alleles exhibit right isomerization of the lungs. Thus, Pitx2 is required for left-right asymmetry of the lungs but not other organs. Homozygotes for either allele exhibit septal and valve defects, and null homozygotes have a single atrium proving that a threshold level of Pitx2 is required for normal heart development. Null homozygotes exhibit arrest of pituitary gland development at the committed Rathke pouch stage and eye defects including optic nerve coloboma and absence of ocular muscles. This allelic series establishes that Pitx2 is required for the development of mulitple organs in a dosage-sensitive manner.  (+info)

Cre-mediated gene inactivation demonstrates that FGF8 is required for cell survival and patterning of the first branchial arch. (2/272)

In mammals, the first branchial arch (BA1) develops into a number of craniofacial skeletal elements including the jaws and teeth. Outgrowth and patterning of BA1 during early embryogenesis is thought to be controlled by signals from its covering ectoderm. Here we used Cre/loxP technology to inactivate the mouse Fgf8 gene in this ectoderm and have obtained genetic evidence that FGF8 has a dual function in BA1: it promotes mesenchymal cell survival and induces a developmental program required for BA1 morphogenesis. Newborn mutants lack most BA1-derived structures except those that develop from the distal-most region of BA1, including lower incisors. The data suggest that the BA1 primordium is specified into a large proximal region that is controlled by FGF8, and a small distal region that depends on other signaling molecules for its outgrowth and patterning. Because the mutant mice resemble humans with first arch syndromes that include agnathia, our results raise the possibility that some of these syndromes are caused by mutations that affect FGF8 signaling in BA1 ectoderm.  (+info)

Dental manifestations in severe combined immunodeficiency following bone marrow transplantation. (3/272)

Severe combined immunodeficiency (SCID) is a rare primary immunodeficiency disorder with an estimated overall frequency of 1 in 75 000 live births. Bone marrow transplantation is the only curative treatment available. Using T cell-depleted HLA non-identical bone marrow requires preconditioning with a short course of cytotoxic chemotherapy. We report severe dental developmental anomalies in three such patients under long-term follow up.  (+info)

Sonic hedgehog regulates growth and morphogenesis of the tooth. (4/272)

During mammalian tooth development, the oral ectoderm and mesenchyme coordinate their growth and differentiation to give rise to organs with precise shapes, sizes and functions. The initial ingrowth of the dental epithelium and its associated dental mesenchyme gives rise to the tooth bud. Next, the epithelial component folds to give the tooth its shape. Coincident with this process, adjacent epithelial and mesenchymal cells differentiate into enamel-secreting ameloblasts and dentin-secreting odontoblasts, respectively. Growth, morphogenesis and differentiation of the epithelium and mesenchyme are coordinated by secreted signaling proteins. Sonic hedgehog (Shh) encodes a signaling peptide which is present in the oral epithelium prior to invagination and in the tooth epithelium throughout its development. We have addressed the role of Shh in the developing tooth in mouse by using a conditional allele to remove Shh activity shortly after ingrowth of the dental epithelium. Reduction and then loss of Shh function results in a cap stage tooth rudiment in which the morphology is severely disrupted. The overall size of the tooth is reduced and both the lingual epithelial invagination and the dental cord are absent. However, the enamel knot, a putative organizer of crown formation, is present and expresses Fgf4, Wnt10b, Bmp2 and Lef1, as in the wild type. At birth, the size and the shape of the teeth are severely affected and the polarity and organization of the ameloblast and odontoblast layers is disrupted. However, both dentin- and enamel-specific markers are expressed and a large amount of tooth-specific extracellular matrix is produced. This observation was confirmed by grafting studies in which tooth rudiments were cultured for several days under kidney capsules. Under these conditions, both enamel and dentin were deposited even though the enamel and dentin layers remained disorganized. These studies demonstrate that Shh regulates growth and determines the shape of the tooth. However, Shh signaling is not essential for differentiation of ameloblasts or odontoblasts.  (+info)

The Class II Division 2 craniofacial type is associated with numerous congenital tooth anomalies. (5/272)

The aim of the present study was to examine whether a putative relationship exists between the Class II division 2 craniofacial type and congenital anomalies of the dentition, such as missing teeth, peg-shaped laterals, transpositions, supernumerary teeth and canine impactions. Two hundred and sixty-seven untreated patients with Class II division 2 malocclusion were examined. The results show that 56.6 per cent of the patients exhibited some form of congenital tooth anomaly, 13.9 per cent agenesis of the upper lateral incisors, 7.5 per cent peg-shaped upper laterals, while impacted canines were present in 33.5 per cent of the subjects. Transpositions were present in 1.1 per cent of the patients and in all cases the canine was involved. No patient exhibited a supernumerary tooth. Comparing the results of the present study with existing data on the percentage of congenital tooth anomalies in the general population, it can be concluded that Class II division 2 malocclusions are closely associated with congenital tooth anomalies.  (+info)

A radiographic comparison of apical root resorption after orthodontic treatment with a standard edgewise and a straight-wire edgewise technique. (6/272)

The purpose of this study was to compare the severity of apical root resorption occurring in patients treated with a standard edgewise and a straight-wire edgewise technique, and to assess the influence of known risk factors on root resorption incident to orthodontic treatment. The sample consisted of 80 patients with Angle Class II division 1 malocclusions, treated with extraction of at least two maxillary first premolars. Variables recorded for each patient included gender, age, ANB angle, overjet, overbite, trauma, habits, invagination, agenesis, tooth shedding, treatment duration, use of Class II elastics, body-build, general factors, impacted canines, and root form deviation. Forty patients were treated with a standard edgewise and 40 with a straight-wire edgewise technique, both with 0.018-inch slot brackets. Crown and root lengths of the maxillary incisors were measured on pre- and post-treatment periapical radiographs corrected for image distortion. Percentage of root shortening and root length loss in millimetres were then calculated. There was significantly more apical root resorption (P < 0.05) of both central incisors in the standard than in the straight-wire edgewise group. No significant difference was found for the lateral incisors. Root shortening of the lateral incisors was significantly associated with age, agenesis, duration of contraction period (distalization of incisors), and invagination, while root shortening of the central incisors was related to treatment group and trauma.  (+info)

Tooth discolouration and staining: a review of the literature. (7/272)

OBJECTIVE: To carry out an extensive review of the literature on tooth staining with particular regard to some of the more recent literature on the mechanisms of tooth staining involving mouthrinses. DESIGN: Comprehensive review of the literature over four decades. CONCLUSIONS: A knowledge of the aetiology of tooth staining is of importance to dental surgeons in order to enable a correct diagnosis to be made when examining a discoloured dentition and allows the dental practitioner to explain to the patient the exact nature of the condition. In some instances, the mechanism of staining may have an effect on the outcome of treatment and influence the treatment options the dentist will be able to offer to patients.  (+info)

Congenital tooth anomalies and malocclusions: a genetic link? (8/272)

The aim of the present study was to investigate putative relationships between different malocclusions such as Class III and Class II division 1, and congenital tooth anomalies. Two-hundred Class III and 215 Class II division 1 patients were examined for the presence of any of the following congenital tooth anomalies: maxillary incisor hypodontia, maxillary canine impaction, transpositions, supernumerary teeth, and tooth agenesis. Their occurrence rates were then calculated as a percentage of the total sample and were compared for statistical differences. The results revealed no statistical difference (P > 0.05) in the occurrence rates of upper lateral incisor agenesis, peg-shaped laterals, impacted canines, or supernumerary teeth between the Class III and the Class II division 1 malocclusions. When the occurrence rate of all congenital tooth anomalies was compared between the two malocclusions, Class III subjects showed significantly higher rates (P < 0.05). Comparison with published surveys on general populations showed similar occurrence rates. It can be concluded that subjects with Class III and Class II division 1 malocclusions show patterns of congenital tooth anomalies similar to those observed in the general population. Congenital tooth anomalies may represent another criterion for the study of malocclusion, with respect to their origin and development.  (+info)

  • Hemimaxillary enlargement, asymmetry of the face, tooth abnormalities, and skin findings (HATS) syndrome, a rare developmental disorder, involves the first and second branchial arches and is characterized by hemimaxillary enlargement, abnormal appearance of skin and teeth, and facial asymmetry. (
  • Dental examination revealed a unilateral gingival and lip hypertrophy over the right side, along with irregularly sized spaces between her teeth on her right side (Figures 2A , 2B ). (
  • Dental panoramic radiography showed hyperplasia of the right maxillary alveolus and basal bone with missing teeth, consisting of the upper right first and second premolars and the lower right first premolar (Figure 4 ). (
  • Individuals with higher than normal levels of baseline serum α-tryptase (i.e., 8-10 ng/ml) present with a multi-system disorder called hemimaxillary enlargement, asymmetry of the face, tooth abnormalities, and skin findings (HATS) syndrome, a complex disorder characterized by hemimaxillary enlargement, abnormal appearance of skin and teeth, and facial asymmetry [2,. (
  • In addition to skeletal and dental abnormalities, people with cleidocranial dysplasia may have hearing loss and be prone to sinus and ear infections. (
  • The primary skeletal abnormalities in dwarf dogs are their shortened legs, which make their bodies appear to be unusually long in comparison. (
  • The purpose of this study was to investigate the relationships between the calcification stages of various teeth and skeletal maturity stages using cervical vertebrae among Indians individuals. (
  • They may be unilateral or bilateral and single or multiple, in distribution, occur in any part of the tooth bearing areas in both dental arches, and may occur in primary and permanent dentition [ 2 ]. (
  • Subsequent tooth development (dentition) is delayed and impaired. (
  • The article discusses the dentition of albino rats and examines the rate of interstitial growth in rat persistent teeth. (
  • The structural changes in teeth following instances of fever are examined and the relationship between dentition and disease is described. (
  • Third molars are commonly called " wisdom teeth " and may never erupt into the mouth or form at all. (
  • The dentist will examine the mouth and teeth. (
  • Otherwise, monitor good tooth health through prevention According to the ADA, many diseases of the teeth and surrounding tissues cannot be seen when your dentist examines your mouth without X-rays. (
  • If you have any signs, your dentist looks for changes in your teeth and mouth over the next several visits to see if the process is progressive and to determine whether you need treatment. (
  • Except for the teeth, the interior of the mouth is covered with mucous membrane. (
  • Patients most in need of special mouth care include those who (1) breathe through their mouths because of nasal obstruction or other conditions, (2) are receiving nasal oxygen, (3) have a restricted oral intake or are being fed by tube, (4) are comatose or otherwise unable to care for their teeth and mouth, (5) are receiving radiation therapy to the head and neck, or (6) are receiving chemotherapy for a malignancy. (
  • Tooth buds form inside the mouth. (
  • Anatomical abnormalities in the nose and oral cavity in combination with lax muscle tone can cause the individual to breathe through his/her mouth. (
  • The way their mouth is made, the continuous grinding of one tooth on the other is how teeth are maintained and balanced from one side to the other. (
  • He spits out these squishy hay (or grass) boluses when tooth or mouth problems make it hard for him to properly chew long-stem fibres. (
  • Foot deformities in 16-year-old boy with Charcot-Marie-Tooth disease type 1A. (
  • Msx1 thus has a critical role in mediating epithelial-mesenchymal interactions during craniofacial bone and tooth development. (
  • Dental panoramic radiography showed hyperplasia of the right maxillary alveolus and basal bone with missing teeth, consisting of the upper right first and second premolars and the lower right first premolar (Figure 4 ). (
  • This abnormality can also result in infections, abscesses, abnormal root growth, misalignment of the jaw, severe bone destruction as roots grow into the jaw and nasal cavities, and fractures in the teeth themselves. (
  • Wisdom teeth frequently have a positioning in the jaw or bone tissue that makes them difficult, if not impossible, to adequately clean and maintain. (
  • After the 18th week , the disease may be cured, but babies may still have irreversible deafness, eye issues, and bone and joint issues, like Hutchinson teeth. (
  • The first 2 premolars are not present, but the maxillary canine tooth developed within the bone and was causing the dog to sneeze and snort. (
  • When the tooth fails to break thru, the fluid has nowhere to go, so the increase in pressure will cause bone destruction and eventually swelling, as the cyst gets larger. (
  • Syphilis acquired in utero and manifested by any of several characteristic tooth (Hutchinson's teeth) or bone malformations and by active mucocutaneous syphilis at birth or shortly thereafter. (
  • A way to remember the causes is "PIG ON TAP" Local factors- Occlusal Trauma Trauma Non-functional tooth Unopposed tooth (and impacted teeth, embedded teeth, teeth without antagonists) Systemic factors- Idiopathic Pituitary Gigantism Paget's Disease Acromegaly Periapical granuloma Arthritis Calcinosis Rheumatic fever It may be one of the complications of Paget's disease of bone in the form of generalized hypercementosis. (
  • A sleep medicine specialist can conduct more tests, such as a sleep study that will assess for episodes of teeth grinding and determine if you have sleep apnea or other sleep disorders. (
  • Tooth anomalies and human disorders have been well covered by recent reviews, therefore in this paper we wish to present a classical review of current knowledge of tooth development, fitting together data from a large number of recent research papers to draw general conclusions about tooth development. (
  • Other Disorders of Teeth and Jaws: 18. (
  • He added: "Our findings emphasise the need for parents to help their children to avoid the need for dental surgery, such as tooth extractions, in the first place by paying attention to diet and good oral hygiene, and regular visits to the dentist. (
  • Such deposits form bulbous enlargements on the roots and may interfere with extractions, especially if adjacent teeth become fused (concrescence). (
  • In treatment of ulcers, nerve pain and sensitive teeth, laser ablation can fasten tissue healing processes, by promoting collagen formation, reducing pain and anti-inflammatory. (
  • Upon initial examination, it is likely that the veterinarian will look for signs of tooth root abscess and ulcers. (
  • Looseness of teeth is caused by a disease of the periodontium and includes the tissues surrounding the teeth. (
  • The abnormalities of the tongue include tongue disease, tongue tie and size-related anomalies. (
  • Wisdom teeth are often difficult to clean, and if so, cavity and/or gum disease formation is likely. (
  • The purpose of this study is to identify the issues that have greatest impact on QOL for patients with Charcot Marie Tooth (CMT) Disease. (
  • They are responsible for cleaning teeth, looking for signs of oral disease in patients, and providing education and preventative care. (
  • Patients with Charcot-Marie-Tooth (CMT) disease have a significant family history. (
  • Bony abnormalities commonly seen in long-standing CMT disease include pes cavus (high-arch foot), probably analogous to the development of claw hand in ulnar nerve lesion. (
  • Hutchinson teeth results from being exposed to congenital syphilis while a baby is in utero, notes the Centers for Disease Control and Prevention . (
  • In addition to being peg-shaped and having a crescent-shaped notch, teeth will be smaller and more widely spaced than usual, according to Disease InfoSearch . (
  • Dwarf dogs with abnormally long bodies in comparison to their relatively short legs, such as Dachshunds, Corgis and Basset Hounds, have an increased risk of developing painful spinal abnormalities (back problems), especially intervertebral disk disease. (
  • A supernumerary tooth (ST) is defined as any tooth or odontogenic structure that is formed from tooth germ in excess of usual number for any given region of the dental arch. (
  • The number of teeth generated will then be investigated, looking at how tooth germ number can be reduced or increased by apoptosis, fusion of tooth germs, creation of new tooth germs, and the generation of additional teeth from existing tooth germs. (
  • Also during tooth development, parathyroid hormone-related peptide (PTHrP) is expressed surrounding the tooth germ. (
  • Growth of the Tooth Germ in Newborn Rats Exposed to Oxygen at Atmospheric and High Pressure. (
  • If any additional teeth form, for example, fourth and fifth molars, which are rare, they are referred to as supernumerary teeth (hyperdontia). (
  • Supernumerary teeth are more frequent in males. (
  • Supernumerary teeth cause a range of complications varying from crowding to cyst formation. (
  • anodontia and supernumerary teeth were the most reported (4.63% and 3.31%, respectively). (
  • Individuals with higher than normal levels of baseline serum α-tryptase (i.e., 8-10 ng/ml) present with a multi-system disorder called hemimaxillary enlargement, asymmetry of the face, tooth abnormalities, and skin findings (HATS) syndrome, a complex disorder characterized by hemimaxillary enlargement, abnormal appearance of skin and teeth, and facial asymmetry [2,. (
  • Our findings suggest that the homozygous recessive H2665L missense sequence variant impairs the normal morphology of the teeth roots via loss of cementum synthesis, and is also associated with early onset, recessive, Wagner syndrome, thus expanding both the phenotype mutation scenario and the inheritance mode of VCAN mutations. (
  • Overgrown teeth or tooth roots can elongate and become impacted. (
  • Bad breath, also known as halitosis, is more common in older horses, said Dr. Heide, "because, later in life, their teeth wear down to where they're closer to the roots. (
  • Infected teeth are swarming with harmful bacteria that have direct access to your cat's bloodstream through the blood vessels in and around the roots of his teeth. (
  • The process by which deciduous teeth are exfoliated involves the resorption of their roots and the subsequent shedding of the crown. (
  • Hypercementosis is an idiopathic, non-neoplastic condition characterized by the excessive buildup of normal cementum (calcified tissue) on the roots of one or more teeth. (
  • Though, it is clear that early treatment can possibly prevent further complications, some authors anecdotally suggested that this approach is hazardous due to possible risk of damage to the developing tooth germs. (
  • These mice also exhibit abnormalities of the nasal, frontal and parietal bones, and of the malleus in the middle ear. (
  • Teeth are made of multiple tissues of varying density and hardness. (
  • The tissues that form teeth may also spawn cyst or tumor formation. (
  • If an environment exists where dental plaque tends to accumulate (for any reason, ranging from patient neglect to situations that are simply impossible to clean), both the tooth and the tissues that surround it will be at increased risk for problems. (
  • The pathogenesis is unclear but may include vascular abnormalities (vasculitis), excess collagen deposition, and excess proteoglycan production in the involved tissues. (
  • Sometimes what happens is that abnormal teeth do not wear themselves out naturally and this might result in them being sharp and jagged and this in turn might be the result of the biting of the cheek or the jaws. (
Cureus | Hemimaxillary Enlargement, Asymmetry of the Face, Tooth Abnormalities, and Skin Findings (HATS) Syndrome: A Case...
Cureus | Hemimaxillary Enlargement, Asymmetry of the Face, Tooth Abnormalities, and Skin Findings (HATS) Syndrome: A Case... (
Non-syndromic occurrence of true generalized microdontia with mandibular mesiodens - a rare case | Head & Face Medicine | Full...
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Wolf-Hirschhorn Syndrome - NORD (National Organization for Rare Disorders) (
Dental radiography - Wikipedia
Dental radiography - Wikipedia (
Monkey Teeth Enables an Idea of the Time When Neanderthal Baby was Weaned
Monkey Teeth Enables an Idea of the Time When Neanderthal Baby was Weaned (
Dye test can identify oral abnormalities at risk of turning malignant: study
Dye test can identify oral abnormalities at risk of turning malignant: study (
PPT - ABNORMALITIES OF TEETH PowerPoint Presentation, free download - ID:2920983
PPT - ABNORMALITIES OF TEETH PowerPoint Presentation, free download - ID:2920983 (
Wiedemann Rautenstrauch Syndrome - NORD (National Organization for Rare Disorders)
Wiedemann Rautenstrauch Syndrome - NORD (National Organization for Rare Disorders) (