06/03/2026
Does your dog have a mysterious lump or swelling under their eye? It might not be what you think — it could be a tooth root abscess!
A tooth root abscess occurs when bacteria invade the root of a tooth, causing a painful pocket of infection deep below the gumline. In dogs, the upper fourth premolar — sometimes called the carnassial tooth — is one of the most commonly affected teeth. Because its roots sit so close to the tissue beneath the eye, an abscess here can show up as a soft, warm swelling on the face, just below or in front of the eye.
Many owners are surprised to learn that what looks like a skin problem or an eye issue is actually coming from a tooth!
Other signs to watch for:
- Reluctance to chew or dropping food
- Pawing at the face or eye
- Bad breath
- A draining wound or crusty patch on the cheek
- Pain or sensitivity around the muzzle
Tooth root abscesses are painful and won't resolve on their own — they require veterinary treatment, which often includes antibiotics, pain relief, and tooth extraction.
The good news? Regular dental check-ups and at-home tooth brushing can go a long way in preventing dental disease before it reaches this stage.
If you notice any facial swelling on your dog, don't wait — give us a call to book a dental exam. Early treatment means less pain and a faster recovery for your pup.
(778) 716-8387