Dental Malocclusion in Naked Mole-Rats
Like all rodents, naked mole-rats have continuously growing incisors throughout their lives. These teeth should normally wear down steadily through contact between the upper and lower jaws, and through digging and gnawing activities. Denta...
What is it?
Like all rodents, naked mole-rats have continuously growing incisors throughout their lives. These teeth should normally wear down steadily through contact between the upper and lower jaws, and through digging and gnawing activities.
Dental malocclusion is a misalignment of these incisors. When they no longer meet correctly, they fail to wear evenly. They then grow excessively, sometimes at odd angles, and can eventually injure the mouth, lips, or even prevent the animal from eating.
In naked mole-rats, this condition requires particular monitoring because this species relies heavily on its incisors for burrowing. Any abnormality of the jaws directly affects both natural behavior and feeding ability.
Commonly observed signs
These signs are neither exhaustive nor specific. Only a veterinarian can establish a diagnosis.
Related signs — each one links to its page:
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Prognosis
The prognosis is generally favorable if malocclusion is detected early and managed regularly with periodic dental corrections.
Conversely, if complications such as deep abscess or bone involvement develop, the prognosis becomes more guarded and requires more intensive management and lifelong close monitoring.
Frequently asked questions
Can the naked mole-rat completely cure its malocclusion?
Rarely permanently if the cause is structural (poor jaw alignment). In this case, it is rather a matter of long-term management with regular dental checks and corrections, rather than a single cure.
Should you give chewing objects to prevent malocclusion?
An environment that allows for digging and gnawing is important for the natural wear of teeth, but it is not always sufficient to correct an alignment defect that is already present. Only a veterinarian can assess whether this will be sufficient in a given case.
How can I tell if my naked mole-rat has a malocclusion without examining it myself?
It is better not to try to force the animal's mouth open yourself, as this can injure the animal or yourself. Instead, observe its eating behavior and weight, and consult a veterinarian specializing in exotic animals if you have any concerns.
Is this disease hereditary?
A genetic or congenital component is possible, particularly in captive colonies. Monitoring reproduction and kinship within the group may be discussed with a specialist.
References
AVMA — American Veterinary Medical Association
Content reviewed by the TunisieVet editorial team · Updated 04 September 2026
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