Hi, my son just adopted a 2 year old rescue cat and he's over grooming a bit, which is an issue, but not the biggest one. While at a new vet to check for some spots without fur, the vet did a dental check and said this tooth needs to be removed immediately at a cost of nearly $2,000. He doesn't have red gums anywhere else, just this one spot. So is this vet right? I've seen cats with red gum lines but not just one spot. Anyone else see this before?