Shrew dental malocclusion
Dental malocclusion is a misalignment of the teeth in shrews. \nThe top and bottom teeth no longer fit together correctly. \nThis prevents normal wear of the teeth when chewing. \nThe shrew is an insectivorous animal whose teeth grow contin...
What is it?
Dental malocclusion is a misalignment of the teeth in shrews. \nThe top and bottom teeth no longer fit together correctly. \nThis prevents normal wear of the teeth when chewing. \nThe shrew is an insectivorous animal whose teeth grow continuously in certain species, which makes this problem particularly penalizing. \nWithout proper wear, teeth lengthen abnormally and interfere with eating.
Key point
Fasting, even brief, is dangerous for the shrew because of its very rapid metabolism; Any difficulty eating should be taken seriously quickly.
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:
The animal has difficulty grasping and chewing its food. \nHe may drool or show profuse salivation. \nWe often observe a progressive weight loss because the animal eats less or more difficult. \nTeeth may appear misaligned, too long or irregular on examination. \nBad breath or loose teeth may also be noticed. \nThe animal becomes despondent, less active, because the shrew has a very fast metabolism and does not cope well with fasting, even short ones.
When to consult without delay
This list does not replace veterinary advice. It gathers situations that justify a prompt consultation.
Causes and risk factors
Malocclusion can be congenital, that is to say present from birth due to a malformation of the skull or jaw. \nIt can also be acquired following trauma (shock, fall, bite) which displaces a tooth or deforms the jaw. \nAn unsuitable diet, which is too soft and does not allow the natural wear of the teeth, also promotes this disorder in species with continuous tooth growth.
Captive shrews fed a diet that is too soft or lacking in variety are at greater risk. \nA genetic origin or a family malformation can predispose certain individuals. \nFacial trauma, common in small, fragile animals, is a triggering factor.
Diagnosis and care
Diagnosis is the veterinarian's responsibility, based on clinical examination and laboratory tests. Care is decided case by case.
The veterinarian carries out a careful examination of the oral cavity, often difficult given the small size of the animal. \nSedation or light anesthesia may be necessary to properly visualize the teeth. \nIn some cases, a dental x-ray is helpful to evaluate the roots and jawbone.
Treatment
Treatment is based on mechanical correction of the malocclusion, for example filing or reduction of teeth that are too long, carried out by the veterinarian. \nNutritional support is often essential while the animal is eating normally again, as the shrew cannot tolerate fasting. \nIn severe or recurrent cases, tooth extraction may be considered.
Treatment depends on the cause and the animal's condition: it must be determined by a veterinarian. No self-medication.
Prevention
Providing a varied diet including whole prey or firm-textured foods helps with natural tooth wear. \nHandling the animal with care to avoid facial trauma is essential. \nA regular check of the mouth by a veterinarian familiar with small exotic mammals allows early detection.
Possible complications
Without treatment, the animal can stop eating properly and quickly weaken due to its very rapid metabolism. \nMouth sores, local infections or dental abscesses may appear. \nSevere weight loss can be life-threatening in just a few days.
When to see a veterinarian
The animal drools or salivates unusually.
The animal seems to have difficulty eating or avoids certain foods.
Weight loss or depression is noted.
Teeth appear visibly misaligned, broken or too long.
The animal stops eating, even for a short time.
Prognosis
The prognosis depends on the speed of treatment. \nEarly correction often allows the animal to return to a normal diet. \nIn the absence of treatment, the outcome can quickly become unfavorable due to the very high metabolism of the shrew, which is very sensitive to fasting.
Frequently asked questions
Is dental malocclusion common in shrews?
It remains poorly documented because the shrew is an animal rarely kept in captivity, but it can occur, especially after trauma or with an unsuitable diet.
Can you treat a shrew at home?
No, a dental problem requires rapid veterinary advice, because this animal has difficulty coping with stopping food.
How to prevent this problem?
A varied and firm diet, adapted to an insectivorous species, helps the natural wear of the teeth and limits the risks.
Does it matter if the shrew stops eating?
Yes, it's an emergency. The shrew's very rapid metabolism makes fasting dangerous in just a few hours.
References
Content reviewed by the TunisieVet editorial team · Updated 19 September 2026
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