What You Can do for a Dog with Misalignment of Teeth (Malocclusion)

By Jan Bellows, DVM, Dipl. AVDC, ABVP

Care & Wellness, Dental, Pet Services

Dogs can have malocclusion (misalignment of the teeth) much like people. Dogs, like people, develop teeth after birth and this misalignment may begin as the teeth come in, or malocclusion may occur later in life due to injury. When a tooth is out of place, but it is not interfering with other teeth, rubbing against or penetrating the gum tissue, or affecting how your dog eats, a functional bite exists. Repairing a functional bite for cosmetic purposes is not necessary and is considered unethical.

When abnormally positioned teeth interfere with other teeth, rub against or penetrate the gum tissue, or affect your dog's ability to eat, a non-functional bite exists, and action needs to be taken to create a functional bite. Three treatment options exist: extraction to provide space of the offending teeth, crown reduction and restoration, and tooth movement.

When is extraction preferred?

Extraction of the offending tooth or teeth is usually the treatment of choice and usually results in immediate relief.

Functional bite creation through incisor removalExtraction of the canine or fang teeth can be challenging, as the roots of these teeth are very long. In some cases, a referral to a veterinary dental specialist may be recommended. Your veterinarian can recommend a dental specialist in your area.

What is crown reduction and restoration?

Reducing the length of a canine tooth or incisor will often resolve the problem of tooth penetration into the opposing gum. This is an advanced dental procedure, preserving the vitality of the tooth through vital pulp or root canal therapy. Vital pulp therapy involves the removal of a layer of pulp in the tooth and placing a medicated dressing over the newly exposed pulp to allow healing. Root canal therapy involves the removal of pulp in a tooth, cleaning and sterilizing the pulp canal, and finally filling the canal with material to prevent infection. In both cases, restoration with a barrier of light-cured dental composite is placed over the area. For added protection, a metallic crown can be placed.

What’s involved with tooth movement?

Moving poorly positioned teeth to functional positions can be rewarding. Teeth are either moved surgically or through the use of inclined planes (appliances that are adhered to the teeth), orthodontic buttons (or brackets, similar to those used in people), and elastics.

Orthodontic movement is an advanced dental procedure that should only be performed by someone with an advanced understanding of dental anatomy, physiology, and orthodontic principles (see “Orthodontics (Moving Teeth) in Dogs” for more information). Your veterinarian can help you find a board-certified veterinary dentist in your area or you can go to www.avdc.org.

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