canines , premolars , and 2 out of 3 sets of molars . Dentition pertains to the tooth development development ... dentition, whereas those whose teeth differ morphologically are said to have heterodont dentition. The dentition ... is referred to as diphyodont , while the dentition of animals with only one set of teeth throughout life is monophyodont . The dentition of animals in which the teeth are continuously discarded ... dentition originated from a folding in of the placoderm s armour, evolving into the familiar condition ... d e.g. di dc dm. ref name CambridgeDictHumBiol&EvolDentalFormula An animal s dentition for either ... show the deciduous and permanent dentition of all Catarrhini catarrhine primate s, including humans ... a dental comb upper anterior dentition is peg like and short. ref name CambridgeDictHumBiol&Evolp309 ... 2.1.3.3 A prosimian. The upper incisors are lost in the adult, but are present in the deciduous dentition ... have a dentition formula of DentalFormula upper 2.1.3.3 lower 2.1.3.3 or DentalFormula upper ... permanent DentalFormula upper 3.0 1.3 4.3 lower 3.0 1.3.3 Permanent dentition varies from 36 42 ... upper 2.0.3.3 lower 1.0.2.3 ref name Martin1983p102 br End of table Dentition use in archaeology Dentition, or the study of teeth, is an important area of study for archaeologists, especially ... Dentition affords many advantages over studying the rest of the skeleton ... is much more extensive and therefore more representative. Dentition is particularly useful in tracking ... Phalangeal formula Dentition discussions in other articles Some articles have helpful discussions on dentition, which will be listed as identified. Lemur Dentition Lemur Further reading citation ... 11 and Chapter 2 Dental anatomy pp.12 20 . title Primate Dentition An Introduction to the Teeth ...&oi fnd&pg PP15&dq 22primate dentition 22&ots SAyZgpFvG &sig oSlxJFPqJQMjW0kuYCMRzQlD SI ... can be assumed to be for adult, or permanent dentition. b. Note label b b none Regarding horse dentition ... more details
Summary Normal child full dentition as depicted using the Palmer Tooth Notation Method. Vector version of Image Ptnchild.png 50px , originally by Mark Preston. Licensing GFDL migration relicense ... more details
Summary Normal adult full dentition as depicted using the Palmer Tooth Notation Method. Vector version of Image Ptnadult.png 50px , originally by Mark Preston. Licensing PD self date June 2008 ... more details
Unreferenced date March 2007 image Tooth Picturewlabels.jpg thumb 500px left Right upper molar showing the four main upper molars cusps. The metacone is a cusp dentistry cusp on the molars of the upper dentition in hominids . It is found at the buccal distal area of the tooth. The crests between the cusps are adaptations for slicing food during occlusion or mastication chewing . Other cusps of the upper dentition of hominids include the paracone , hypocone , and the protocone . Category Teeth dentistry stub ... more details
Brachydont is a type of dentition characterized by low crowned teeth, as opposed to high crowned, hypsodont teeth. Human teeth are brachydont. External links http animaldiversity.ummz.umich.edu site topics mammal anatomy tooth diversity.html Category Teeth Category Tooth development ... more details
Hypsodont dentition is characterized by high crowned tooth teeth and enamel which extends past the gum line. ref Flynn, John J., Andr R. Wyss, and Reynaldo Charrier. South America s Missing Mammals. Scientific American. May 2007 68 75. ref This provides extra material for wear and tear. Some examples of animals with hypsodont dentition are cattle cows , horses and deer all animals that feed on gritty, fibrous material. The opposite condition is called brachydont . External links http animaldiversity.ummz.umich.edu site topics mammal anatomy tooth diversity.html The Diversity of Cheek Teeth References references Category Tooth development Category Teeth de Kronenh he Zahn fr Hypsodontie ... more details
Unreferenced date December 2007 Image Tooth Picturewlabels.jpg thumb 250px Right upper molar showing the four main upper molars cusps The hypocone is the name for a main cusp dentistry cusp found on the Molar tooth molars of the upper dentition of hominids . It is found on the distal lingual side of the tooth. It fits into the grooves of the lower dentition and is an adaptation for the overall grinding and tearing of foods using the Occlusion dentistry occlusal chewing side of the tooth surface during occlusion or mastication chewing . Its strength is due to the thickness of the Tooth enamel enamel which differs among species of hominids. dentistry stub Category Teeth ... more details
image Tooth Picturewlabels.jpg thumb 500px right Right upper molar showing the four main upper molars cusps. The protocone is a cusp dentistry cusp of the molars of the upper dentition in Placental and Marsupial vertebrates ref Gavin Prideaux, Systematics and Evolution of the Sthenurine Kangaroos April 1, 2004 . UC Publications in Geological Sciences. Paper vol 146. http repositories.cdlib.org ucpress ucpgs vol 146 p.16 ref .It is found at the mesiolingual area of the tooth. The crests between the cusps are adaptations for slicing food during occlusion dentistry occlusion or mastication chewing . Other cusps of the upper dentition of hominids include the paracone , hypocone , and the metacone . References references Category Teeth dentistry stub ... more details
Odontometrics is the measurement and study of tooth size. ref cite book url http highered.mcgraw hill.com sites 0767430220 student view0 glossary.html title The Human Species An Introduction to Biological Anthropology, Glossary first John last Relethford year 2009 publisher McGraw Hill Online Learning Center isbn 0073531014 accessdate May 2, 2010 ref ref cite book last Kieser first Julius A. title Human Adult Odontometrics The Study of Variation in Adult Tooth Size publisher Cambridge University Press series Cambridge Studies in Biological and Evolutionary Anthropology year 2008 isbn 0521064597 ref It is used in biological anthropology and bioarchaeology to study human phenotypic variation. The rationale for use is similar to that of the study of Dentition Use in archaeology dentition , the structure and arrangement of teeth. References references Category Teeth anthropology stub archaeology stub ... more details
File Teeth by David Shankbone.jpg thumb Adult mouth showing full set of permanent teeth. Permanent teeth are the second set of teeth formed in humans. There are thirty two permanent teeth, consisting of six maxilla maxillary and six Human mandible mandibular Molar tooth molars , four maxillary and four mandibular premolar s, two maxillary and two mandibular Canine tooth canine s, four maxillary and four mandibular incisor s. The first permanent tooth usually appears in the mouth at around six years of age, and the mouth will then be in a transition period with both deciduous teeth and permanent teeth mixed dentition until the last deciduous tooth is lost. The first of the adult teeth to erupt are the permanent first molars that come through the gums at the back, right behind the last milk molars. These first permanent molars are the most important teeth for the correct development of an adult dentition. Up to the age of thirteen years, twenty eight of the thirty two permanent teeth will appear. The full permanent dentition is completed much later. The four last adult teeth, one at the back of every arch will appear between the ages of seventeen and twenty one years. This is the reason they are named wisdom teeth . In rare occurrences, a third set of teeth is possible. It s been reported to happen to very elderly humans and in even more rare cases of younger people who have had their permanent teeth removed. In light of the very rare occurrence of multiple sets of teeth in humans, some new studies have proposed that the OSR2 gene could be responsible for this. References http users.forthnet.gr ath abyss dep1172.htm Permanent dentition Adult teeth chart Morphology and eruption time of permanent teeth. Ash, Major M. and Stanley J. Nelson, 2003. Wheeler s Dental Anatomy, Physiology, and Occlusion. 8th edition. dentistry stub Tooth anatomy Category Dentistry subjects Category Teeth zh min nan ng ki kh ca Dent permanent dv es Dentici n permanente fr Dent perm ... more details
Orphan date October 2006 American Megafauna is a board game on the topic of evolution designed by Phil Eklund, and published by Sierra Madre Games in 1997 in games 1997 . While the game is not an attempt to be a simulation , a variety of genuine evolutionary factor s are incorporated in the game, ranging from Milankovich cycles to dentition . The game may be played in a solitaire mode as well as multi player. External links http spotlightongames.com summary amf.html Game Synopsis bgg 639 American Megafauna Category Biology themed board games board game stub ... more details
Non free use rationale Article Pampas Fox Description Comparative illustration of red fox and pampas fox dentition Source The new natural history c1901 , by Lydekker, Richard, 1849 1915 Volume 1 Portion Low resolution Lower than original Purpose To illustrate the differences between the two species Replaceability other information Licensing PD old 100 ... more details
Unreferenced stub auto yes date December 2009 Image Toothmold.jpg thumb a custom dental mould A dental impression may be described as an accurate representation of part or all of a person s dentition and other areas of the mouth. The dental impression forms an imprint i.e. a negative mould of those teeth and gums, which can then be used to make a Casting cast or positive model physical model of the dentition . This may be used for the fabrication of denture s, crown dentistry crowns or other prostheses . An impression is carried out by placing a viscous liquid material into the mouth usually in a customised tray. The material then sets to become an deformation engineering elastic solid, and when removed from the mouth retains the shape of the teeth. Common materials used for dental impressions are sodium alginate , polyether and silicone s both condensation curing chemistry cured silicones and addition cured silicones, such as polyvinyl siloxane . Historically plaster of Paris, zinc oxide eugenol and agar have been used. See also Crown dentistry DEFAULTSORT Impression Dental Category Dentistry Category Dental materials Dentistry stub zh min nan K b es Impresi n dental lt Dant atspaudas ... more details
Unreferenced stub auto yes date December 2009 The anatomical term heterodont from Ancient Greek Greek , meaning different teeth refers to animal s which possess more than a single tooth morphology biology morphology . For example, members of the Synapsida which includes Mammalia mammals generally possess incisor s, Canine tooth canines eyeteeth , premolar s, and molars . The presence of heterodont dentition is evidence of some degree of feeding hunting specialization in a species . By contrast, homodont same teeth dentition is the plesiomorphic primitive state for vertebrates , and is common in elasmobranch s, bony fish , amphibians , and most reptiles . Within the Sauropsida , there are occasionally cases of heterodonty, in some forms of pterosaurs , lizards , and dinosaur s, for example. The term heterodont can also refer to members of the Subclass Heterodonta of the Class Bivalvia . The name refers to the differentiated hinge teeth which hold together the valves of the shell. See also Diphodonty Category Zoology Category Teeth Digestive stub Evolution stub ca Heterod ncia de Heterodontie es Heterodoncia fr H t rodontie ja pl Heterodontyzm ru uk ... more details
Unreferenced stub type animal auto yes date December 2009 Automatic taxobox taxon Trigoniacea image Yaadia valentina.4 Cretacico inferior.JPG image caption Yaadia valentina oldest fossil Devonian parent authority Dall, 1889 authority Jean Baptiste Lamarck Lamarck display parents 2 display children 1 The Taxonomic rank superfamily Trigoniacea are medium sized saltwater clam s, Marine ocean marine bivalve mollusk s. This superfamily is the sole representative of the Order biology order Trigonioida . Within the fossil record the occurrence of this superfamily is widespread, from the Devonian Period geology Period to Recent . The diagnostic feature for the superfamily is the unique and complex dentition of the shell, i.e. the interior hinge teeth that articulate the two valves . The dentition is particularly elaborate within the Family biology family Trigoniidae . The Trigoniacea contain the following families Myophoriidae Trigoniidae Category Bivalves Category Prehistoric molluscs Paleo mollusc stub de Trigonioidea fr Trigonioida nl Trigonioida ... more details
Adapisoricidae is an extinct Family biology family of placental mammals , order Erinaceomorpha , present during the Paleocene . Closely related to the Hedgehog family, they did not present the spines of the hedgehog, but their dentition was similar. They were small placentals of about 15 cm long, with a tail of equal length. They were probably nocturnal, eating insects and fruits. References cite book title Mammoths, Sabertooths, and Hominids 65 Million Years of Mammalian Evolution in Europe url http www.amazon.com Mammoths Sabertooths Hominids Jordi Agusti dp 0231116403 first1 Jordi last1 Agusti first2 Mauricio last2 Anton publisher Columbia University Press date 2002 isbn 0 231 11640 3 Category Erinaceomorphs ... more details
New unreviewed article source ArticleWizard date August 2010 File Jernvall Jukka.jpg thumb Jukka Jernvall Jukka Jernvall born 1963 is a Finnish academy professor at the University of Helsinki . His research centers around the interplay of ecology , evolution and developmental biology , especially of the mammalian dentition . He is one Finland s leading evo devo researchers. Jernvall received his Ph.D. in evolutionary biology in 1995. His thesis investigating the evolution and development of mammalian molar tooth molar Cusp dentistry cusp patterns was supervised by Irma Thesleff and Mikael Fortelius . This led to the description of enamel knot as molecular signaling centers in teeth which can provide positional information for tooth morphogenesis and regulate the growth of tooth cusps. Later, Jernvall has focused on the modelling of three dimensional dentition phenotype s. He has studied why certain dentition patterns arise several times during the course of evolution, while other patterns occur only rarely. The science journal Nature journal Nature described his and his two post doc researchers studies of dentition evolution as some of the most significant pieces of evolutionary research of the recent decade or so. ref http www.nature.com nature newspdf evolutiongems.pdf 15 Evolutionary Gems ref At the moment, Jernvall leads his research group in the Institute of Biotechnology, University of Helsinki and is also a research professor at Stony Brook University , NY , USA . ref http life.bio.sunysb.edu ee research faculty.htm Ecology & Evolution Faculty in Stony Brook University ref The current research of his team ranges from mutant mice in the laboratory to evolutionary diversity in the fossil record and to the senescence of wild mouse lemur populations in the Ranomafana National Park in Madagascar . References Reflist External links http www.biocenter.helsinki.fi bi evodevo group Jernvall.shtml Jernvall s research group http www.aka.fi en gb A Academy of Finland Who ... more details
Infobox Disease Name PAGENAME Image Caption DiseasesDB ICD10 ICD10 K 00 2 k 00 ICD9 ICD9 520.2 ICDO OMIM MedlinePlus eMedicineSubj eMedicineTopic MeshID Macrodontia is a condition in which any tooth or teeth appear larger than normal for that particular type of tooth. True macrodontia that involves the entire dentition is rare. It is more common that there is an enlargement of a single tooth due to a disturbance of morphodifferentiation . It should not be confused with either taurodontism bull teeth , tooth fusion fusion double tooth or the jaws being relatively small, giving the appearance of macrodontia. It is commonly associated with gigantism . Alternate terminology Megadontia, megalodontia and giantism it is an opposite side of microdontia classified as true generalised macrodontia relative generalised macrodontia macrodontia of single teeth Aetiology Unknown for single tooth, but generalized macrodontia is usually attributed to a hormonal imbalance, pituirary giantism. Can be associated with facial hemihyperplasia Frequency Unknown in the primary dentition. br 1.1 in the permanent dentition Management Stripping br Build up of antimere br Extraction and prosthetic replacement implant, bridge, implant br References Kahn, Michael A. Basic Oral and Maxillofacial Pathology. Volume 1. 2001. Cameron, A. & Widmer, R. Handbook of Padiatric Dentistry. Second Edition 2003. Category Oral pathology dentistry stub Tooth disease zh min nan K kh ch ng fr Macrodontia ja pt Macrodontia ... more details
Taxobox name Paraenhydrocyon fossil range Fossil range Early Oligocene Early Miocene regnum Animalia phylum Chordata class Mammalia ordo Carnivora familia Canidae subfamilia Hesperocyoninae genus Paraenhydrocyon genus authority Wang, 1994 type species Temnocyon wallovianus subdivision ranks Species subdivision Paraenhydrocyon robustus P. robustus Paraenhydrocyon josephi P. josephi syn. Mesocyon hortulirosae Paraenhydrocyon wallovianus P. wallovianus syn. Temnocyon venator Paraenhydrocyon beside Enhydrocyon is an extinct genus of bone crushing omnivorous mammal similar to a dog of the Family biology family Canidae which inhabited North America during the Oligocene living from 33.3 20.6 Annum Ma and existed for approximately Mya 33.3 20.6 million years . ref http paleobackup.nceas.ucsb.edu 8110 cgi bin bridge.pl?action checkTaxonInfo&taxon no 41232&is real user 1 Philotrox Basic info. ref Though a carnivore, dentition suggests this animal was a hypercarnivore or mesocarnivore . ref R. M. Nowak. 1991. Walker s Mammals of the World. Maryland, Johns Hopkins University Press edited volume II ref ref Q. Ji, Z. X. Luo, C. X. J.R. Yuan Wible, J. P. Zhang, and J.A. Georgi. 2002. The earliest known eutherian mammal. Nature 416 816 822 ref Taxonomy Paraenhydrocyon was named by Wang 1994 . It was assigned to Canidae by Wang 1994 and Munthe 1998 . ref K. Munthe. 1998. Canidae. in C. M. Janis, K. M. Scott, and L. L. Jacobs eds. , Evolution of Tertiary mammals of North America 124 143 ref Morphology Two specimens were examined by Legendre and Roth for body mass . The first specimen was estimated to weigh Convert 8.86 kg lb abbr on sigfig 2 . The second specimen was estimated to weigh Convert 8.43 kg lb abbr on sigfig 2 . ref S. Legendre and C. Roth. 1988. Correlation of carnassial tooth size and body weight in recent carnivores Mammalia . Historical Biology 1 1 85 98 ref Dentition In addition to its retention of several primitive cranial characters, Paraenhydrocyon dentition includ ... more details
, Torvoneustes is unique in having a false ziphodont dentition. The common ancestor of Dakosaurus and Geosaurus may also have had a ziphodont dentition, and as Torvoneustes is also a descendant of this common ancestor, it is possible that a ziphodont dentition was secondarily lost in the genus ... more details
gallery gallery Unreferenced date July 2009 A Quad Helix or quadhelix is an orthodontic appliance for the upper teeth that is cemented in the mouth . It is attached to the Molar tooth molar s by 2 bands and has Two or four active helix spring device springs that widen the arch of the mouth to make room for crowded teeth, or correct a posterior cross bite, where lower teeth are buccal outer than upper teeth. It is usually made from 38 mil stainless steel wire and is primarily indicated in mixed dentition, cleft patients and those that have performed the act of thumbsucking. A variety of this appliance is inserted into attachments that are welded to the bands. In this way the orthodontist can adjust the appliance without removing the bands. medical equipment stub dentistry stub Category Orthodontics Category Dental equipment orthodontology de Headgear fr Quad H lix ... more details
globalize article UK date December 2010 Restorative dentistry is the study, diagnosis and integrated management of diseases of the teeth and their supporting structures and the rehabilitation of the dentition to functional and aesthetic requirements of the individual. Restorative dentistry encompasses the dental specialties of endodontics , periodontics and prosthodontics and its foundation is based upon how these interact in cases requiring multifaceted care. In the UK restorative dentistry is legally recognized as a specialty under EU directive, with voices from the British Society for Restorative Dentistry and the http www.restdent.org.uk Association of Consultants & Specialists in Restorative Dentistry . External links http www.bsrd.org.uk British Society for Restorative Dentistry http wearedentistry.com category restorative dentistry We Are Dentistry http www.restdent.org.uk Association of Consultants & Specialists in Restorative Dentistry DEFAULTSORT Restorative Dentistry Category Dentistry branches fa Dentistry stub ... more details
Taxobox name Metalopex fossil range Fossil range Late Pleistocene status Fossil regnum Animal ia phylum Chordata classis Mammalia ordo Carnivora subordo Caniformia familia Canidae genus Metalopex genus authority Tedford and Wang, 2008 species binomial binomial authority Metalopex is an extinct hypocarnivore hypocarnivorous mammal similar to Vulpes endemic to North America . Its sister taxon is the extant Urocyon which form a clade based on dentition. These same dental characteristics are shared by Otocyon and Protocyon . ref Tedford, Richard H., Wang, Xiaoming, Taylor, Beryl EPhylogenetic systematics of the North American fossil Caninae Carnivora, Canidae . Bulletin of the American Museum of Natural History, no. 325 http digitallibrary.amnh.org dspace bitstream 2246 5999 1 B325.pdf .PDF ref References reflist carnivora stub Category Prehistoric animals of North America Category Foxes ... more details
Dental barotrauma is a condition where pressure changes in the external environment cause pain or damage to the dentition . The problem can occur where there is a void within a filled tooth . It is technically difficult to completely prevent void spaces occurring when placing a Dental fillings filling and carrying out root canal treatment . When the external pressure rises or falls the trapped air within the void will attempt to expand or contract. The stresses this places on the tooth structure can cause pain, or rarely fracturing of the tooth structure. Typically this is seen in Underwater diving divers or aviators who experience pressure changes in the course of their activity. Identifying the pain during a pressure change is a diagnostic indicator for the clinician. Treatment involves removing the void space by carefully replacing the offending restoration, repeating the endodontic treatment or removing the tooth. Category Dentistry ... more details
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