The Canine Teeth (dentes canini) are four in number, two in the upper, and two in the lower arch. Each one is placed laterally to a 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 to the middle line than the upper, so that their summits correspond to the intervals between the upper canines and the lateral incisors.