An old lady went to visit her dentist. When it was her turn, she sat in the chair, lowered her underpants, and raised her legs. The dentist said:
“Excuse me, but I’m not a gynecologist. “
“I know, “said the old lady. “I want you to take my husband’s teeth out. “
This joke is included in the Black Book of Jokes. You can order it from here.