K.C.
I'm a dental assistant. Try not to worry about your child grinding his teeth. As long as he isn't complaining of headaches or jaw problems, he should be fine. Children's bruxism is different than adults who have bruxism. Children have mixed dentition (baby teeth and adult teeth) or even a child who only has baby teeth. Their bite is not aligned (match up), so in their sleep they are constantly moving them to find a"place". Or if they have an earache they may grind their teeth at night. But as long as he is not complaining of headaches or jaw pain, I wouldn't worry about it. Of course though, ask your dentist when you bring him in! :)