Minor dental stuff

( People who don't want to read about my dental experiences are free to skip this )

Meta-humor

There once was an X from place B,
Who satisfied predicate P.
The X did thing A,
In a specified way,
Resulting in circumstance C.

People who don't understand why a meta-limerick would amuse the hell out of me probably don't understand me much anyway, in which case I sincerely apologize. The rest of you can buy your own new keyboards.

h/t PartiallyClips