S.M.
Some people pull their hari, others pull out their eyelashes and yet there are many things people do when they need to feel some comfort from their own sense of control in their own life-all ages included. Start out by talking toher not questioning- and see if you can pick up on what bothers her. You may want to find a couselor to talk to-for you then maybe her. Now on the other side of this-there are some great battery operated toothbrushes out there for the kids-remember SOFT brushes only-let her help pick out one she likes and see if this helps also a brushing chart may make it good for all of yo so she isn't doing it ALLDAY LONG-that could be a sign of the other issues. And a trip to the dentist and if you can see the educational programs too-all will help. Now watch the "issues" as if this stops the teeth thing then it could show up in another issue down the line-some people again all ages just need extra support along the way-give it and don't be tough-love is needed here!