cuspid

Learn Your Tooth Anatomy, Shape, and Function Teeth differ in shape depending on their function & position in the mouth. On the inside, however, they all share the same basic anatomy. Parts of a Tooth Crown: the visible, chewing portion of the tooth. Root: the portion of the tooth hidden by the gums, it anchors the tooth into the jawbone. (The root makes up about two-thirds of the total length of the tooth.) Enamel: the hard outer covering of the crown of the tooth, [...]