Patient: "It must be tough spending all day with your hands in someone's mouth."
Dentist: "I just think of it as having my hands in their wallet."

Dentist begging the patient: Could you help me? Could you give out a few of your loudest, most painful screams?
Patient: Why? Doc, it isn't all that bad this time.
Dentist: There are so many people in the waiting room right now and I don't want to miss the 4 o'clock ball game.

Patient: "Doctor, I have yellow teeth, what do I do?"
Dentist: "Wear a brown tie..."

Why did the Dentist say to the Stockbroker?
It looks like you have gone long in the tooth.