Kids normally begin losing their primary teeth from around 6 years of age. From 6-12 years, youngsters have a mixture of adult and primary teeth. By about 12 years, the majority of children have all their adult teeth except for the third molars ( knowledge teeth). There are 32 adult teeth. If your kid's baby teeth came late, the grown-up teeth will probably be late too. If you're concerned regarding kids dentist and also your kid's teeth advancement, see your dental professional.