When under stress, some people grind their teeth during sleep. I am one of them and managed to fracture a tooth and pop out an existing restoration last week, a fairly good indicator of my anxiety at work over a product quality issue. I have a night guard to help protect my teeth but find it to be incompatible with romantic aspirations. This morning I paid the price during a two-hour session with my dentist. I had the restoration replaced without Novacane but wisely opted to use it for the tooth receiving a new crown. That tooth still hurts a day later as I am typing this entry.