People who've had root canals...
 

... and for the first 5 years of not having any feeling in the nerve-less tooth begin to have painful sensitivity to any cold (or warm) liquid (air included)? This comes after a few weeks of me having the unshakable thought that I felt it shift in my upper jaw as well.

What should I do?

You want me to recommend a dentist for you?

I'm thinking you should open a consulting business or something!

My brother-in-law is an endodontist in Des Moines, I can ask him. I may not have an answer until tomorrow though.

Kill yourself and avoid the pain

It is most likely referred pain from a nearby tooth. Or, it could be that when the original root canal was done, a canal was missed. This second option is unlikely, particularly if it was done by an endodontist. Anyhow, go see your dentist. They will take an x ray and figure it out for you.

There's the dentist I probably would have recommended.

I don't have nearly enough businesses.

air is not a liquid.

hope that helps...

You're smarter than you look.

And I work for peanuts and beer too.

How many truckloads of peanuts and beer for falsies for my whole crew?

cheetos and handjobs for all my men!

maybe they didnt get it all. happened to me twice. infection is the next step.

If you 'felt it shift' you might have cracked a crown. Go have 'em take a look.