A tooth (plural teeth) is a mignonne, calcified, whitish form start in the jaws (or mouths) of innumerable vertebrates and habituated to to ease up down food. Some animals, explicitly carnivores, also exercise teeth repayment for hunting or for defensive purposes. The roots of teeth are covered nearby gums. Teeth are not made of bone, but to a certain extent of multiple tissues of varying density and hardness.

The general make-up of teeth is similar across the vertebrates, although there is respectable modifying in their form and position. The teeth of mammals drink profound 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 outwardly of the bone, while in lizards they are attached to the inner surface of the jaw alongside one side. In cartilaginous fish, such as sharks, the teeth are seconded around tough ligaments to the hoops of cartilage that form the jaw.

Children's tooth development begins while the baby is in the womb. Teething usually occurs between the ages of six and nine months. Children usually have their full set of 20 primary teeth (milk teeth, baby teeth or deciduous teeth) by the age of three years. At about the age of six years, the first permanent teeth erupt (push through the gum).