Rabbit Dental Disease: Malocclusion, Pain, and Welfare

Dental disease is the most common health problem in pet rabbits and a leading cause of suffering. Understanding its causes, signs, and prevention is essential for rabbit welfare.

Key Facts

Rabbits have open-rooted teeth that grow continuously throughout life; proper wear from correct diet is essential to maintain alignment.
Dental malocclusion — misalignment of teeth — leads to overgrowth, spurs, and ulcers on the tongue and cheeks.
The most common cause of acquired dental disease is insufficient dietary hay — rabbits need unlimited grass hay for proper tooth wear.
Lop and dwarf breeds have a higher genetic predisposition to dental disease due to skull shape and tooth crowding.
Signs include drooling, difficulty eating, weight loss, eye discharge (from tooth root pressure on tear ducts), and facial swelling.
Diagnosis requires a full oral examination under sedation or anaesthesia and dental radiographs to assess tooth roots.
Treatment includes regular dental burring under anaesthesia, which does not cure the underlying problem but manages progression.

Welfare Considerations

Rabbit dental disease causes chronic, often severe pain that is frequently unrecognized by owners. Rabbits are prey animals that mask signs of illness; by the time obvious symptoms appear, disease is often advanced. Dental spurs cutting into the tongue and cheeks cause constant mouth pain that makes eating agonizing — yet affected rabbits continue to eat out of instinct and necessity, masking the extent of their suffering. The requirement for repeated general anaesthesia for dental treatment carries risks for rabbits and represents ongoing welfare burden. Prevention through diet is by far the most important welfare measure — ensuring unlimited access to high-quality grass hay is the single most effective intervention. Owners of lop and dwarf breeds should be particularly vigilant and schedule regular veterinary dental checks.

What You Can Do

Feed your rabbit unlimited grass hay (timothy, meadow, orchard grass) as the majority of their diet — this is the foundation of dental health.
Limit pellets and treat foods that do not require prolonged chewing.
Schedule annual veterinary dental checks for all rabbits, and more frequently for lop and dwarf breeds.
Learn the signs of dental disease: wet chin, reduced appetite, eye discharge, facial lumps, or weight loss.
Seek veterinary evaluation promptly if you notice any signs of dental problems — early intervention improves outcomes.
Be cautious when selecting rabbit breeds — flat-faced and lop breeds carry significantly higher dental disease risk.