i concurr (SP?) hit up the vet... unless you are a cheapskate and dont mind taking the chance of getting bitten-> if so, then carefully push on the swollen spot. If the dog yelps or acts like it hurts, then its infected. If not, then try to manuever whatevers stuck up there out by pushing from the top of the tooth to the bottom... i've done it to our old dog. She used to get woodchuck fur in her teeth. That was the best way to get it out. Cookie didnt seem to mind, but your dog might. Worth a shot if you dont wanna pay the vet.