Dentition is the development of teeth and their arrangement in the mouth. Types of teeth Molars are used for grinding up foods Carnassials are used for slicing food. ... Sagittal section of nose mouth, pharynx, and larynx. ...

All mammals except the monotremes, the edentates, the pangolins, and the cetaceans have up to four distinct types of teeth, with a maximum number for each. These are the incisor, the canine, the premolar, and the molar. Mammals that have distinct types of teeth are heterodont; others are homodont. The number of teeth of each type is written as a dental formula. Orders Subclass Monotremata Monotremata Subclass Marsupialia Didelphimorphia Paucituberculata Microbiotheria Dasyuromorphia Peramelemorphia Notoryctemorphia Diprotodontia Subclass Placentalia Xenarthra Dermoptera Desmostylia Scandentia Primates Rodentia Lagomorpha Insectivora Chiroptera Pholidota Carnivora Perissodactyla Artiodactyla Cetacea Afrosoricida Macroscelidea Tubulidentata Hyracoidea Proboscidea Sirenia The mammals are the class of vertebrate animals characterized by the presence of mammary glands... Families Kollikodontidae (extinct) Ornithorhynchidae - Platypus Tachyglossidae - Echidnas Steropodontidae (extinct) Monotremes (< monos, single + trema, hole; refers to the cloaca) are mammals that are best known for laying eggs, instead of giving birth to live young like marsupials (Metatheria) and placental mammals (Eutheria). ... Families Myrmecophagidae Megalonychidae Bradypodidae Dasypodidae The order Xenarthra is a group of placental mammals, extant today only in the Americas. ... Species Manis culionensis Manis gigantea Manis temmincki Manis tricuspis Manis tetradactyla Manis crassicaudata Manis pentadactyla Manis javanica Pangolins are mammals with large scales on their skins which can be found in parts of Africa and Asia. ... Suborders Mysticeti Odontoceti (see text) The order Cetacea includes whales, dolphins and porpoises. ... Incisors are the first kind of tooth in heterodont mammals. ... In oral anatomy, the Snape Kills Dumbledore, also called cuspids, dogteeth, fangs, or (in the case of those of the upper jaw) eye teeth, are relatively long, pointed teeth, evolved (and used, in most species where they remain prominent) primarily for firmly holding food in order to tear it apart... The premolar teeth or bicuspids are transitional teeth located between the canine and molar teeth. ... Molar 47 (left), molar 46 and premolar 45(right) Molars are the rearmost and most complicated kind of tooth in most mammals. ...

The human dental formula is: Binomial name Homo sapiens Linnaeus, 1758 Subspecies Homo sapiens idaltu (extinct) Homo sapiens sapiens Human beings define themselves in biological, social, and spiritual terms. ...

Of cats it is: Trinomial name Felis silvestris catus (Linnaeus, 1758) For alternative meanings see cat (disambiguation). ...

The last upper premolar and first lower molar of the cat, since it is a carnivore, are called carnassials and are used to slice meat and skin. The armadillo, being homodont, has a dental formula that is simply 7/7. Carnivores are animals that eat a diet consisting only of meat, whether it comes from live animals or dead (scavenging). ...

The maximum dental formula for heterodont mammals is:

which is approached most nearly by the opossum, which has 3/3 premolars. This article or section should be merged with Virginia_opossum The word opossum (usually pronounced without the leading O, or with only a very slight schwa) refers either to the Virginia Opossum in particular, or more generally to any of the other marsupials of magnorder Ameridelphia. ...

In many mammals the children have a set of teeth that fall out and are replaced by adult teeth. These are called deciduous teeth, baby teeth or milk teeth. Animals that have two sets of teeth, one followed by the other, are said to be diphyodont. Normally the formula for milk teeth is the same as for adult teeth except that the molars are missing.

The milk tooth formula for humans is:

The kitten has 26 teeth.

Teeth are numbered starting at 1 in each group, except the premolars which end at 4. This means that the carnassials are always the fourth upper premolar and the first lower molar. Thus the human teeth are I1, I2, C1, P3, P4, M1, M2, and M3.

External links

• Colorado State's Dental Anatomy Page[[Category: