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1.
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.
by garylee March 08, 2009
 
2.
A really bad dentist. Or someone cleaning your teeth that isn't trained.
Sometimes I open my mouth to let my cat sniff it. And then he licks it. Stupid crentist.
by kate kunkel March 10, 2008