Children normally begin losing their primary teeth from around 6 years old. From 6-12 years, children have a mix of adult and also primary teeth. By about 12 years, a lot of children have all their adult teeth with the exception of the 3rd molars ( knowledge teeth). There are 32 grown-up teeth. If your youngster's primary teeth came late, the adult teeth will most likely be late too. If you're concerned regarding kids dentist and also your youngster's teeth development, see your dentist.