dentition

..2) List of specimens with more complete dentition and the numbers of available teeth per tooth class...

Dental polymorphism in teleost fishes often involves production of a robust dentition, or "molarization", in one morph...

..for a paired domain-containing transcription factor that plays an essential role in the development of mammal dentition, has been associated with selective tooth agenesis in humans and mice, which mainly involves the posterior teeth...

..in complex oral complications affecting the salivary glands, oral mucosa, bone, masticatory musculature, and dentition. When the oral cavity and salivary glands are exposed to high doses of radiation, clinical consequences ..

..To complete the available data on the functional dentition in the Ta mice, we analyzed the mandibular cheek teeth in 261 postnatal specimens arranged in several phenotype/..

..composition of children (N = 74, aged 3 - 18 years) in natural transition from their deciduous to a permanent dentition and related the microbial profiles to their oral health status...

..determined the expression pattern of all eight Dlx genes of the zebrafish during development of the pharyngeal dentition and compared these data with that reported for mouse molar tooth development...

..much to an understanding of the developmental genetic mechanisms underlying diversification of the vertebrate dentition. Tooth development, structure, and replacement in the zebrafish largely reflect the primitive condition of jawed ..

..approach used in the present work can help to explore new hypotheses linking development with the patterning of dentition during mammalian evolution...

..The aim of this study was to evaluate the effect of dental state on the capacity of elderly individuals to carry out their daily activities during the previous six months...

..This link between diet and phenotype will be useful for inferring the ecology of extinct species and illustrates the potential of fast-throughput, high-level analysis of the phenotype...

..The organization of the vertebrate dentition as a system of repeated parts provides an opportunity to study the extent to which phenotypic modules, ..

..However, in some muroid subfamilies, this direction of mastication is associated with low-crowned and cuspidate molars (Cricetomyinae, Murinae)...

..Thus, there were generalized and localized effects within the dentition, and these findings are compatible with the statistical expectations of the proposed multifactorial model.

Studies of mammalian evolution frequently use data derived from the dentition. Dental characters are particularly central for inferring phylogenetic relationships of fossil taxa, of which teeth are often the only recovered part...

..macedoniensis and other extinct hominoids were more sexually size dimorphic than any living great apes, which suggests that social behaviors and life history profiles of these species may have been different from those of living species...

..was presented about the developmental relationship between the structures at the external aspect of the dentition in mammals (oral vestibule, pre-lacteal teeth, paramolar cusps/teeth), the tooth glands in reptiles, and the ..

..gene expression data that address both the field and clone theories for patterning a polyphyodont osteichthyan dentition. These data inform how the initial pattern may be established through up-regulation at tooth loci from a broad ..

..01). After adjustment for tobacco smoking and alcohol drinking, poor dentition as evidenced by missing teeth, frequency of dental check-ups and frequency of teeth brushing emerged as a strong ..

This paper reviews the concept of morphogenetic fields within the dentition that was first proposed by Butler (Butler PM. Studies of the mammalian dentition. Differentiation of the post-canine dentition...

..I conclude more generally expressed genes that control directional resistances to growth, not locally expressed genes, may provide the information for the shape into which a tooth develops...

..The purpose of this study was to determine mean maximum bite force in adults with normal occlusion and to evaluate effect of face form on it...

..In phylogenetic studies, small cusps may be unreliable as phylogenetic signals. Population level variation can be a powerful tool in testing and generating hypotheses in developmental evolution studies...

..in plant diversity or abundance, but may signal a shift towards elevated tooth replacement rates and high-wear dentition. Sauropods lacked many of the complex herbivorous adaptations present within contemporaneous ornithischian ..

..No differences were detected in sexual practices (including oral sex) and (previous) sexually transmitted infections...

..Knowledge of Carnian sauropodomorphs has been restricted to this single species...

..The recent advances that have been made in our knowledge on the molecular control of tooth formation in non-mammalians (mostly in some teleost model species) will undoubtedly contribute to answering these questions in the coming years...

..Therefore, we hypothesize that poor dentition status can impair the systemic health of the aged...

..of maxillary molars in the absence of activin shows a position specific role for this pathway in development of dentition. Functional redundancy with activin B or other TGFbeta family members that bind to activin receptors cannot ..

..It is the mouse dentition that this review will concentrate on...

Although features of the dentition figure prominently in discussions of early hominid phylogeny, remarkably little is known of the developmental basis of the variations in occlusal morphology and dental proportions that are observed ..

..This literature review is aimed at providing an introduction to this still hotly debated issue...

..An epidemiological project has been designed, with the purpose of uncovering the associations between the observed tongue position and certain functional and anatomical features, as suggested by the present study...

..High variability in incisor width may be due to age effects of a distinctive diet and pattern of dental wear...

..interactions governing odontogenesis in the zebrafish, we describe here the generation of the pharyngeal dentition, and the histological development of teeth up to fourteen days post-fertilization, using serial semithin ..

..The scheme of creation of dental data bank applicable in personal identification is offered...

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..3. and 4., and another parameter (item 6.) representing roundness of the mandibular arch...

..Nevertheless, the evidence from anatomical analysis and measurements supports the hypothesis that Dmanisi is close to the stem from which H. erectus evolved...

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..captive chimpanzee populations. A revised dental growth chronology for chimpanzees is similar to estimated timing of Homo erectus and therefore has implications for interpreting life history in hominins...

..Evidence of bone surface damage is, however, too scant to make confident inferences about specific carnivore taxon/taxa involved in hominid bone collection at the site...

..It is the first vertebrate taxon from the Toutunhe Formation that is probably not endemic and lends some support to the dating of the Formation as late Middle Jurassic, probably Bathonian...

..These specimens significantly increase the dento-gnathic sample available for intensive morphological investigation of the earliest Javanese hominids [Kaifu et al., 2005]...

..Parsimony analysis suggests that this fossil represents a separate basal mammalian lineage with some dental and vertebral convergences to those of modern xenarthran placentals, and reveals a previously unknown ecomorph of early mammals...

..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...

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..andiniensis (and interpreted as indicating feeding on small fish or mollusks). Thus, the morphological diversity of pelagic marine crocodyliforms was wider than had been thought...

..Embryonic body proportions and an absence of well-developed teeth suggest that hatchlings of this dinosaur may have required parental care...

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..Pterosauria: Ornithocheiridae), SMNK 2302 PAL, allowed investigations of the replacement pattern of the dentition macroscopically and by using CT scans...

..This could result from the limited fossil record of bats in Asia, but could also suggest new palaeobiogeographic scenarios involving the relative position of India during the Early Eocene...

..habilis, they also display some derived characteristics, particularly in relation to dental reduction, resembling that seen in the dentition of H. erectus from the Far East.

..This complex of parameters can be used as an additional test in personal identification...

..The material from Obi-Rakhmat (OR-1), a subadult represented by part of a permanent maxillary dentition and a fragmentary cranium, expresses a relatively Neandertal-like dentition coupled with more ambiguous cranial ..

..Later in lungfish evolution, this disparity was lost as the group settled to a pattern of dental development that is just as stereotypic as, but completely different from, that of other osteichthyans...

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..Kanapoi, Allia Bay, Laetoli, Hadar) using polarized character-state data from 20 morphological characters of the dentition and jaws. If the hypothesis that A. anamensis is ancestral to A...

..Temporal and anatomical intermediacy between Ar. ramidus and Au. afarensis suggest a relatively rapid shift from Ardipithecus to Australopithecus in this region of Africa, involving either replacement or accelerated phyletic evolution...

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This introduction to new patterning theories for the vertebrate dentition outlines the historical concepts to explain graded sequences in tooth shape in mammals (incisors, canines, premolars, molars) which change in evolution in a linked ..

A human partial maxillary dentition and a fragmentary cranium were recovered from Obi-Rakhmat Grotto in northeastern Uzbekistan in 2003...

..The mandible and lower jaw dentition is a powerful model with which to investigate the mechanisms that facilitate morphological change-in this case, ..

..Thus, the preponderance of dental evidence from the Grotte du Renne strongly supports that Neandertals were responsible for the Châtelperronian industry at Arcy-sur-Cure...

..of food and suggest how these physical properties can be used to investigate the functional morphology of the dentition. We show what aspects of anterior tooth morphology are critical for food preparation (e.g...

..CT) and genetics provide new insights into the morphology and biology of anatomical traits, particularly in the dentition. As we move towards a fuller understanding of the genetic and developmental bases for dental traits, we need to ..

..Developmental similarities between Paranthropus and Graecopithecus are interpreted to be parallelisms due to similarities in the mechanical demands of their diets...

..maxillary incisor beveling of Aubesier 4 helps to extend the antiquity of nondietary use of the anterior dentition. The interproximal "toothpick" groove on the Aubesier 10 molar increases the sample for these lesions...

..2.6-1.2 Ma. The morphology of Omo-323 increases our knowledge of the intraspecific variability of A.boisei...

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..The new discovery provides a case of convergent evolution and demonstrates that non-avian theropods were much more diverse ecologically than previously suspected...

..While numerous studies have proven conclusively the uniqueness of the human dentition, forensic odontologists worldwide remain divided about the need for a minimum number of concordant points to ..

The present study focuses on the main characteristics of first-generation teeth (i.e., the first teeth of the dentition to develop in a given position and to become functional) in representatives of the major lineages of nonmammalian ..

The lungfish dentition is different from other osteichthyan fish because it has a characteristic and unique pattern of teeth arranged as toothplates...

..ER 1470 and OH 65 can be accommodated in the H. habilis holotype, casting doubt on H. rudolfensis as a biologically valid taxon...

..and general practitioners on the characteristics required for acceptable occlusion in the full permanent dentition. A questionnaire was sent to all 37 health centres where at least one orthodontist was employed, 31 regionally ..

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..kadabba. It is therefore premature to posit extensive late Miocene hominid diversity on the basis of currently available samples...

..New data from this fossil support the view that Asia was likely the center for the diversification of the earliest metatherians and eutherians during the Early Cretaceous...

..As noted by many workers, the human dentition is basically "designed" on the premise that extensive wear will occur, a conclusion that seems ..

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..The purpose of this study was to investigate the distribution of periodontopathic bacteria in oral cavities of children and their parents and the relationship between the bacterial findings and clinical parameters...

..Both Indigenous and non-Indigenous children were included...

..between temporomandibular joint (TMJ) dysfunction, bruxism and oral parafunctions in the permanent and mixed dentition of Turkish children...

..Authors and manufacturers of dental materials were individually contacted...

To determine the association between allergic rhinitis, bottle feeding, non-nutritive sucking habits, and malocclusion in the primary dentition.

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..To investigate the distribution patterns of primary and permanent teeth in the cleft area and the numerical variation in teeth in unilateral complete cleft lip and palate (UCLP) patients...

..group Placodermi is the most phylogenetically basal of the clade of jawed vertebrates but lacks a marginal dentition comparable to that of the dentate Chondrichthyes, Acanthodii and Osteichthyes (crown-group Gnathostomata)...

..the middle mixed, early permanent, and permanent dentitions), 17 human Herbst patients in the early permanent dentition, and 24 human controls from the Burlington Growth Center...

..CCD also results in dental defects that include supernumerary teeth and delayed eruption of permanent dentition. The dental abnormalities in CCD suggest an important role for this molecule in the formation of dentition...

The purpose of the case report was to describe the treatment of a 4(1/2)-year-old boy with amelogenesis imperfect (AI) in the primary dentition.

..To examine parents' attitudes to the dental care of their children, taking into account the family's socio-economic background, dentally-related behaviour including the child's level of dental anxiety and dental treatment history...

..Oral rehabilitation of children with primary or mixed dentition is complex, since no definitive treatment can be done during periods of growth and until the end of eruption of ..

..These findings indicate that dental decay may be prevented by delaying the colonization of the MS in primary dentition. The ideal population for such a study could be found in communities without water fluoridation, with a high ..

..recent reports reveal no significant improvement in the prevalence or severity of dental caries in the primary dentition (64, 120)...

..A higher percentage develops dental defects (e.g., tooth loss, dental caries) with age. Humans replace a full dentition only once early in their lifetimes, and common strategies to replace malformed or missing teeth employ synthetic ..

..retrospective cohort study are to assess the impact of early protein-energy malnutrition (PEM) on the permanent dentition, specifically with respect to: 1) dental caries, 2) enamel hypoplasia, 3) tooth eruption timing, and 4) salivary ..

..retrospective cohort study are to assess the impact of early protein-energy malnutrition (PEM) on the permanent dentition, specifically with respect to: 1) dental caries, 2) enamel hypoplasia, 3) tooth eruption timing, and 4) salivary ..

..The ability to replace lost or diseased dentition and alveolar bone with healthy, biological teeth would revolutionize the practice of dentistry and oral surgery...

Despite numerous statistical analyses to assess the pattern of dental caries in primary dentition, there are still some fundamental questions that remain unanswered...

..which saves the life of the patient but results in radiation-induced complications such as xerostomia, severe dentition breakdown and loss of masticatory function...

..to evaluate factors that might influence this development including diminished salivary flow, lack of natural dentition and changes in gingival inflammatory status...

..fluoride exposure patterns/intake, caries and fluorosis prevalence, and relationships among them for the primary dentition. Currently, we are conducting similar analyses related to the early mixed dentition...

..between very low birth weight (VLBW), bronchopulmonary dysplasia (BPD) and dental caries in the permanent dentition, due to the fact that only recently are increasing numbers surviving to adolescence because of improved neonatal ..

..of Osf2/Cbfa1 mrna and protein and will assess the histologic and molecular changes in Cbfa1(+/-) and Cbfal(-/-) dentition. Aim 2 will study the developmental fate of Cbfa1(-/-) tooth organs when transplanted into wildtype mice and ..

..pulpectomy, tooth extraction, and nerve resection that result in the permanent loss of sensory inputs from the dentition. These procedures in turn may result in a number of syndromes affecting the orofacial region, including phantom ..

..VLBW children are known to have a high prevalence of enamel defects in the primary dentition, which in turn can lead to increased susceptibility to ECC...

..pulpectomy, tooth extraction, and nerve resection that result in the permanent loss of sensory inputs from the dentition. These procedures in turn may result in a number of syndromes affecting the orofacial region, including phantom ..

..VLBW children are known to have a high prevalence of enamel defects in the primary dentition, which in turn can lead to increased susceptibility to ECC...

..VLBW children are known to have a high prevalence of enamel defects in the primary dentition, which in turn can lead to increased susceptibility to ECC...

..Caries in the primary dentition often corresponds with subsequent higher risk for caries in permanent teeth...

..Caries in the primary dentition often corresponds with subsequent higher risk for caries in permanent teeth...

..Caries in the primary dentition often corresponds with subsequent higher risk for caries in permanent teeth...

..Caries in the primary dentition often corresponds with subsequent higher risk for caries in permanent teeth...

..Yet our understanding of the cortical representation of the dentition has lagged far behind...

..eruption and the movement of embryonic tooth germs within the jaws as well as distal and mesial drift of the dentition. While these types of tooth movement resemble osteoclast-mediated resorption of large volumes of bone, ..

..Significant health problems related to the dentition and jaws (the dentognathic complex) range from aesthetic issues due to malocclusion, to increase risk of caries, ..

..Significant health problems related to the dentition and jaws (the dentognathic complex) range from aesthetic issues due to malocclusion, to increase risk of caries, ..

..birthday with no prior dental restoration (to minimize prior mercury exposure) and mixed (primary and permanent) dentition were recruited from two New England communities (rural Main and inner city Boston/Cambridge, Massachusetts) to ..