Teeth you know?
Teeth do you understand?
Human teeth is the most solid organs. There are bite cutting, tearing, grinding food and to assist the functions of pronunciation.
Understanding of the teeth
One's life has two teeth: one for the deciduous teeth, a total of 20, the lower jaw of the 10. About six months after birth around the beginning of the eruption, about a two-year-old semi-homogeneous, since the period of 7-12 years of age, shedding of deciduous teeth after another; another deputy for the permanent teeth, a total of 32.