It is completely normal for a 2 year old child to have 16 teeth. Children’s milk teeth start erupting at 6 months of age and finish erupting at about 2 and a half years of age, with a total of 20 teeth erupting. The overall order of teeth eruption is probably in the middle and then on both sides of the mouth, in the lower jaw and then in the upper jaw, with the first erupting tooth generally being the milk mesial incisor in the middle of the lower jaw, and the last erupting tooth being the milk second molar in the upper jaw. At two years of age most children eruption of teeth is not complete, when the second molar has not yet erupted, and the second molar in the upper and lower left and right is exactly 4 teeth. Therefore, at the age of 2 years old, there are exactly 16 teeth, which is completely normal for children, and there is no need to worry too much.