A guy I knew in college used to brush his teeth after every meal, every snack. 'Fear of impotence" I told him, fresh with whatever dreck of the month I'd just studied.
What do you want to bet he has great teeth today? I have several fillings and a discoloration due to constant coffee drinking.
On the other hand, I always remember drunk poet Charles Bukowski being pleased he'd finally got rid of his last tooth. Nothing but pain and trouble. Course, he'd had quite a few knocked out the hard way.
munk