Gum Ease Cryoanesthetic Mouthpiece
The "Gum Ease G100" is a cryoanesthetic dental mouthpiece that dulls the nerves in your gums without drugs, instead using cold to temporarily deaden the maxillofacial nerves. Because it doesn't completely freeze, it doesn't glue itself to your gums with frozen saliva, either.
Even if your oral surgeon chooses to go the ol' drugs route, the G100 can be purchased over the counter for home use, where it can be used to dull pain post-procedure. That sounds better to me than using it in the chair, although in fairness the only way I can deal with dentistry is to be knocked right out.
Product Page [Biomedeviceltd.com via Red Ferret via Engadget]

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So basically, it's frozen teething keys for adults.