> Why would someone's tooth suddenly develop
> a painful sensitivity to cold stuff (even
> something as minimal as air blowing across
> said tooth during the act of inhaling) out of the
> blue? This person was fine, woke up this
> morning with no problems, came to work, and
> suddenly it was OW OW OW. Also, this person
> has a cold and congested sinuses so he has
> no choice but to breathe through his mouth.
>
> Gri"WO WO WO is OW OW OW
> backwards"shny

*Because* this person has a cold. I'm no biologist, but I do have a brother to whom this happens every time he gets a cold. His sinuses back up, and put pressure on some connecting nerve to jaw and teeth. He's had cold-related toothaches bad enough he's gone to emerg. for relief.

te (hopes this person is feeling better soon) ach