APPEARANCE OF THE TEETH

The normal child has:

Six teeth at one year.
Twelve teeth at one and one-half years.
Sixteen teeth at two years.
Twenty teeth at two and one-half years.

When the child is six years old the first permanent tooth appears just back of the last of the milk teeth. By the time he is seven, the four central teeth, two above and two below, are out and the new ones begin to appear. The order of their appearances is as follows:

Four first molars6 years
Four central incisors7 years
Four lateral incisors8 years
Four first bicuspids9 to 10 years
Four second bicuspids10 to 11 years
Four canines11 to 13 years
Four second molars12 to 15 years
Four third molars17 to 25 years