What did the dinosaur eat after the dentist pulled his tooth?
The dentist!
"I came in to make an appointment with the dentist," said the man to the receptionist.
"I'm sorry sir," she replied. "He's out right now, but..."
"Thank you," interrupted the obviously nervous prospective patient. "When will he be out again?"
What helps keep your teeth together?
What else, Toothpaste!