I am sorry, madam, but I shall have to charge you ten dollars for pulling your boy's tooth.
"Ten dollars! Why, I understood that you charged only two dollars for such work!"
"Yes," replied the dentist, "but this youngster yelled so terribly that he scared out four other patients out of the office."

A man went to his dentist because he feels something wrong in his mouth.
The dentist examines him and says, "that new upper plate I put in for you six months ago is eroding. What have you been eating?"
The man replies, "all I can think of is that about four months ago my wife made some asparagus and put some stuff on it that was delicious ... Hollandaise sauce. I loved it so much I now put it on everything --- meat, toast, fish, vegetables, everything."
"Well," says the dentist, "that's probably the problem. Hollandaise sauce is made with lots of lemon juice, which is highly corrosive. It's eaten away your upper plate. I'll make you a new plate, and this time use chrome."
"Why chrome?" asks the patient. To which the dentist replies, "It's simple. Everyone knows that ... there's no plate like chrome for the Hollandaise!"

What to do you call an old dentist? A bit long in the tooth

Willie: "I have an awful toothache."
Tommie: "I'd have it taken out if it was mine."
Willie: "Yes, if it was yours, I would, too."