Canine tooth

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Canine tooth
This dog's longer pointed cuspids show why they are particularly associated with canines.
Permanent teeth of right half of lower dental arch, seen from above.
Latin dentes canini
Gray's subject #242 1116
MeSH Cuspid

In mammalian oral anatomy, the canine teeth, also called cuspids, dogteeth, fangs, or (in the case of those of the upper jaw) eye teeth, are relatively long, pointed teeth. However, they can appear more flattened, causing them to resemble incisors and leading them to be called incisiform. They evolved and are used primarily for firmly holding food in order to tear it apart, and occasionally as weapons. They are often the largest teeth in the mammalian mouth. Most species that develop them normally have four per individual, two in the upper jaw and two in the lower, separated within each jaw by its incisors; humans and dogs are examples. In most animals, canines are the anterior-most teeth in the maxillary bone. It is a common fallacy to describe canine teeth as being the hallmark of a carnivorous diet - the teeth associated with carnivory are the carnassial teeth.

The two canines in humans are the maxillary canine and the mandibular canine.

Contents

[edit] Details from Gray's anatomy

There are four Canine Teeth which are , two in the upper, and two in the lower arch, one being placed laterally to each lateral incisor. They are larger and stronger than the incisors, and their roots sink deeply into the bones, and cause well-marked prominences upon the surface.

The crown is large and conical, very convex on its labial surface, a little hollowed and uneven on its lingual surface, and tapering to a blunted point or cusp, which projects beyond the level of the other teeth. The root is single, but longer and thicker than that of the incisors, conical in form, compressed laterally, and marked by a slight groove on each side.

The upper canine teeth (popularly called eye teeth) are larger and longer than the lower, and usually present a distinct basal ridge.

The lower canine teeth (popularly called stomach teeth) are placed nearer the middle line than the upper, so that their summits correspond to the intervals between the upper canines and the lateral incisors.

[edit] Additional images

[edit] See also

  • Canidae, the family of mammals commonly known as canines.
  • carnassial - the teeth associated with carnivory.

[edit] External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.