Tiny teeth: Understanding dental health in rabbits, guinea pigs, and other small pets

By Sim Khanuja

UW Veterinary Care’s (UWVC) Special Species Health Service, home to Wisconsin’s only board-certified zoological medicine specialists for exotic pets, is uniquely qualified to provide advanced care for small mammals such as rabbits, guinea pigs, chinchillas, and ferrets.

These species rely heavily on healthy mouths to thrive. “Rabbits, guinea pigs, and chinchillas eat a lot of vegetation and need healthy teeth to do so,” says Christoph Mans (Department of Surgical Sciences), clinical professor of zoological medicine. “Other small mammals like ferrets and hedgehogs have teeth similar to dogs and cats, and any dental disease can make them uncomfortable and lead to secondary health issues.”

Read on to learn how dental disease develops in these animals, warning signs to watch for, and how UWVC supports lifelong wellness for small pets.

Common dental problems in small mammals

The most common issues in rabbits and guinea pigs are overgrowth and malocclusion of the cheek teeth, according to Mans. Chinchillas face additional challenges, as they are also prone to periodontal disease and caries.

Signs of dental trouble

Pet owners should watch for several early signs of dental disease in small mammals, Mans says. Affected animals often begin choosing easier-to-chew foods such as pellets or soft greens, may avoid hay, and can eventually stop eating altogether. Some may drool, and reduced food intake can lead to smaller feces due to inadequate nutrition.

Diet plays critical role

Diet is the primary cause of dental disease in rabbits and herbivorous rodents, Mans says, making nutrition a key element of prevention.

Supporting oral health begins at home, and he recommends “feeding a healthy diet which does not contain grains, seeds, or sugary treats.” While chew treats can be enriching, Mans notes that they are not required for dental maintenance. Safe, non-toxic wood species such as apple wood sticks can be offered for enrichment, but a normal diet is all small mammals need to keep teeth healthy.

Genetic factors may contribute to dental issues as well, yet proper nutrition remains the foundation of long-term success, Mans adds.

When to seek veterinary evaluation

Routine oral exams for many small mammals are more complex. “The cheek teeth in most small mammals cannot be completely evaluated without general anesthesia,” Mans says. For that reason, UWVC recommends complete dental exams if an animal shows signs consistent with dental disease, such as reduced food intake, change in food item preference, and dropping food.

At-home dental care, including tooth brushing, is not practical for rabbits and rodents, Mans says, but ferrets can be brushed like dogs and cats.

How UWVC supports dental wellness

UWVC provides comprehensive evaluation and treatment options for small mammals.

“Our wellness exams include counseling on diet and dental health,” Mans says.

For small mammals already experiencing dental disease, the team also offers diagnostics and treatment options.

Learn more about UWVC’s Special Species Health Service, its clinicians, and what to expect during an appointment here.


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