Is it normal for a guinea pig to lose a tooth, and will it grow back?
It is not normal for an adult guinea pig to lose a tooth; however, they are rodents, and rodents’ teeth grow continuously — that is why they need to have things to chew on, to keep their teeth worn down. This being the case, unless there has been a deeper jaw injury the tooth may well grow back. Keep an eye on the guinea pig, though, since the tooth opposite the one lost (on the upper or lower jaw) may not get worn down properly until the lost tooth grows in again. If the tooth still there starts to look long to you, take the guinea pig to a vet, who can actually trim that tooth down very easily to keep it the right size.
