A: How have you been doing? B: I can't sleep or eat. I have a really bad pain in my tooth! A: How long have you had this toothache? B: It bothers me off and on, but it's gotten much worse these past few weeks. A: Is there anything that you've done to your tooth that might have caused the pain? B: My girlfriend told me that I grind my teeth a lot when I sleep. Maybe that is the problem. A: When you brush your teeth, what do you use? B: I use a soft bristle toothbrush. A: Does it bother you when you have to chew a lot? B: Absolutely. That set it off big time!