"Wanna celebrity smile? You wanna be star don't ya!?"
Bring in some big scissors for: "You know, bad breath starts at the tongue. We can fix that." *snip* *snip*
"This will only hurt a lot."
"9 out of 10 dentists don't want to kill their patients, I'm the 10th."
"Couldn't have your toothache someplace else could ya!?"
"Yes! I loooove pain! That's why I a dentist."