A tooth (plural teeth) is a mignonne, calcified, whitish form start in the jaws (or mouths) of multitudinous vertebrates and habituated to to sever down food. Some animals, strikingly carnivores, also use teeth in behalf of hunting or owing defensive purposes. The roots of teeth are covered by means of gums. Teeth are not made of bone, but fairly of multiple tissues of varying density and hardness.
The general design of teeth is alike resemble across the vertebrates, although there is of distinction modulation in their fabric and position. The teeth of mammals get deep roots, and this figure is also create in some fish, and in crocodilians. In most teleost fish, how, the teeth are fastened to the outer outside of the bone, while in lizards they are fastened to the inner come up of the jaw during harmonious side. In cartilaginous fish, such as sharks, the teeth are unavailable beside tough ligaments to the hoops of cartilage that type the jaw.