A 16-month-old baby usually has about 8 to 16 teeth. Specifically each baby to replace teeth early or late, individual differences, there is no how many is the normal statement. Babies generally from about 6 months when the beginning of the eruption of milk teeth, at about 16 months, more than has erupted 8-16 milk teeth have erupted, but the specific baby growth of teeth vary from person to person, and individual differences are large. If the 13-month-old baby teeth have not yet erupted, can be diagnosed with delayed tooth eruption, so if the 16-month-old baby teeth sparse, generally is not normal, need to be vigilant about not add complementary foods, as well as disease may be, such as vitamin D deficiency, congenital ectodermal dysplasia and other diseases lead to. You can consult the child health department and follow the doctor’s instructions to provide targeted intervention.