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.
Molars: The broad, multicuspid back teeth, used for grinding food are considered the largest teeth in the mouth. In adults there are a total of twelve molars (including the four wisdom teeth, or third molars), three on each side of the upper and lower jaws.