Q. Dear Dr. Tennet, I feel I have pretty good oral health however, I do grind my teeth occasionally and sometimes clench them during the day. recently, I think I cracked one of my front teeth. I think the crack occurred in the back of the tooth. I don’t think it’s serious because I can’t see it and it doesn’t cause me any pain or great sensitivity to hot or cold but I notice it when I exhale. Can this be treated and if so, how? Would the dentist drill it out and replace the crack with some sort of composite or resin? If the crack is in the center of the tooth, would he do the same. I appreciate any response. Thank you so much.