Children have 20 milk teeth, divided into 4 milk incisors, 4 milk lateral incisors, 4 milk cuspids, 4 first molar teeth and 4 second molar teeth. The number of individual congenitally missing teeth may vary.
Children have a total of 20 milk teeth, from about 6 months to eruption of the mandibular milk incisors, generally to about 3 years of age to grow all 20 milk teeth, individual congenitally missing teeth, the teeth may be less, the common is the missing milk lateral incisors.
Milk teeth are divided into milk incisors, milk lateral incisors, milk cusp, the first molar and the second molar, each 4, one each on the upper and lower left and right side. Milk teeth will be replaced by permanent teeth one after another, starting from the age of 6 years old, and continue to be replaced until the age of 12 years old. Therefore, the milk teeth need to be well protected, so as to avoid affecting the permanent teeth to be retreated.