Children usually start shedding their baby teeth from around 6 years old. From 6-12 years, youngsters have a combination of adult and primary teeth. By about 12 years, most kids have all their adult teeth with the exception of the 3rd molars (wisdom teeth). There are 32 adult teeth. If your child's baby teeth came late, the adult teeth will possibly be late too. If you're worried concerning kids dentist as well as your child's teeth growth, see your dental professional.