Patient's question:
My baby is one year and seven months old. So far, only four upper teeth have grown, and only two lower teeth have grown. Is it a lack of nutrition? What should I do? Does this have anything to do with his language expression? He speaks very little now. I'm very anxious. Please provide detailed answers to help me out. Thank you.Onset time:
Test results:
Type of assistance needed: Please explain in detail.
Doctor's answer:
The growth and development of a baby's teeth are related to the growth and development of their bones. At birth, there are already ossified milk teeth in the baby's jawbone, but they have not erupted. Between 4 to 10 months after birth, the milk teeth begin to erupt, and by the age of 2.5 years, all 20 milk teeth should have erupted. The number of milk teeth that a baby has erupted by the age of 2 is approximately their age minus 4 to 6. For example, a 9-month-old baby should have 3 to 4 teeth erupted. However, there is a significant individual variation in the timing of milk tooth eruption. It is considered abnormal if a baby has not erupted any teeth by the age of 12 months.