A really good dentist who has a special quick-dry bonding for emergency crown repair.
Michael: Sounds like a good dentist.
Dwight: Oh yeah...
Michael: What's his name?
Dwight: Crentist.
Michael: Your dentist's name is crentist?
Dwight: Yeah...
Michael: Huh... Sounds a lot like dentist.
Dwight: Maybe that's why he became a dentist.