good morning dr. my daughter is 3year &7 months old but she has only two upper incisor teeth. the remaining 2 are not yet erupted.

A. By the time they are 3 years old, many children will have a full mouth of baby teeth. This timeline can vary widely, though. A slight delay usually isn't a cause for concern. Possible causes of delayed baby teething include premature birth, low birth weight, poor nutrition, or genetics.