 Most species of salamander have small teeth in both their upper and lower jaws . Unlike frogs , even the larvae of salamanders possess these teeth . Although larval teeth are shaped like pointed cones , the teeth of adults are adapted to enable them to readily grasp prey . The crown , which has two cusps ( bicuspid ) , is attached to a pedicel by collagenous fibers . The joint formed between the bicuspid and the pedicel is partially flexible , as it can bend inward , but not outward . When struggling prey is advanced into the salamander 's mouth , the teeth tips relax and bend in the same direction , encouraging movement toward the throat , and resisting the prey 's escape . Many salamanders have patches of teeth attached to the vomer and the palatine bones in the roof of the mouth , and these help to retain prey . All types of teeth are resorbed and replaced at intervals throughout the animal 's life . 
