I brought my daughter (who is 9 1/2) to my dentist because he deals with ortho also. He found that she grinds her teeth at night along with having an overbite. He prescribed a night guard that will serve both purposes - to stop damaging her permanent teeth from grinding her teeth at night & it will also line up her jaw and teeth. It is clear plastic - she only wears it at night & about an hour a day so she can do mouth exercises. It is also much less expensive that braces.