My guinea pig has suffered from an infected tooth incisor for a few moths. We have tried to treat the infection with several courses of antibiotics (Doxycycline, Zithromax). Unfortunately, each time the problem returned. A few days ago, the incisor was finally extracted. However, the tooth root was severely damaged and the vet was unable to extract the entire tooth. The vet has tried to clear the tooth socket as much as possible but a piece of the root was left behind. There is a small chance the tooth will regrow. In that case, the tooth needs to be extracted a second time. However, according to the vet the root is probably dead (it was in very bad shape) which means the tooth will not regrow and fragments of the root will remain in her jaw. I was wondering if anyone has experienced something similar and how this was treated. I am afraid the root fragments will cause new infections. For now she is on antibiotics.