Children usually begin losing their baby teeth from around 6 years of age. From 6-12 years, kids have a combination of grown-up and also primary teeth. By about 12 years, many kids have all their grown-up teeth except for the 3rd molars ( knowledge teeth). There are 32 grown-up teeth. If your child's baby teeth came late, the grown-up teeth will possibly be late too. If you're worried concerning kids dentist and your youngster's teeth advancement, see your dental practitioner.