kept all of mine except the one that they had to remove an inch of jaw bone. mostly cos it was drilled into several pieces (an impacted lower wisdom tooth). I wouldn't have a general anaesthetic and unnerved the dentist by naming all the instruments he was using (I was just about to take dental nurse exams). They got their own back by giving me an antibiotic shot in the posterior. I never thought I'd have to drop my trousers in the dentists......