Children generally start shedding their baby teeth from around 6 years old. From 6-12 years, youngsters have a mix of adult and also primary teeth. By about 12 years, many children have all their grown-up teeth except for the 3rd molars (wisdom teeth). There are 32 adult teeth. If your child's baby teeth came late, the adult teeth will most likely be late as well. If you're concerned concerning kids dentist and your youngster's teeth advancement, see your dental professional.