Kids usually start shedding their primary teeth from around 6 years old. From 6-12 years, kids have a mixture of adult and also baby teeth. By around 12 years, many children have all their adult teeth except for the 3rd molars ( knowledge teeth). There are 32 adult teeth. If your kid's baby teeth came late, the adult teeth will probably be late also. If you're concerned regarding kids dentist as well as your youngster's teeth advancement, see your dental practitioner.