The Committee on the Status of Endangered Species, a federal advisory group, has created a list of 340 animals and plants that are in some jeopardy. Here are the categories the committee uses: Extinct  The species no longer exists in Canada.
The front teeth are called incisors, You have four incisors on the top jaw and bottom jaw. the central incisors (the front two teeth) the lateral incisors (the teeth on either side of the central incisors) they have multiple functions. your smile, having a full set of teeth will give you an even smilwe.
Teeth are classified into four major groups: incisors, canines, premolars, and molars. Incisors are chisel-shaped teeth found in the front of the mouth and have a flat apical surface for cutting food into smaller bits. Canine teeth, also known as cuspids, are sharply pointed, cone-shaped teeth that are used for ripping tough material like meat. They flank the incisors on both sides. Premolars (bicuspids) and molars are large, flat-surfaced teeth found in the back of the mouth.