Children typically start losing their baby teeth from around 6 years old. From 6-12 years, children have a combination of adult and also primary teeth. By about 12 years, many children have all their adult teeth besides the third molars (wisdom teeth). There are 32 grown-up teeth. If your child's primary teeth came late, the grown-up teeth will most likely be late as well. If you're concerned concerning kids dentist and also your child's teeth growth, see your dental professional.