I've had just about every dental problem imaginable, and had another tooth pulled two weeks ago.

One more dental horror story:
I read once, many years ago, about a dentist that gave a patient a shot of novacaine in the top part of his mouth, in the back, and hit the wrong area - it was injected into the base of his brain. He slipped into a coma and died. But don't worry, that sort of thing is rare