Like I mentionned, this was a post in MyLot, so I don't know if the guy took his cat to the vet or not. I sure hope everything turned out ok. I was looking closely at one of my cats. He doesn't have an overbite, but he does appear to have some sort of dental abnormality. His right bottom tooth comes out over his upper lip. He doesn't seem to be uncomfortable or in pain. Another thing this particular cat does is sometimes just sitting there with his tongue hanging out, but his mouth closed.

I wonder if this could be related to the tooth problem. Anyway, this cat has belonged to my husband for a long time. He says it's always been like that and the vet never seemed concerned as long as the cat was comfortable.