Researchers Identify EOTRH Risk Factors

EOTRH is a painful, recently identified condition that primarily affects horses’ incisors and canine teeth.
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As if horses weren’t prone to enough injuries and health issues, a new dental disease surfaced in 2004. It’s literally a mouthful: equine odontoclastic tooth resorption and hypercementosis (EOTRH). And because it’s so recently identified, Ann Pearson, MS, DVM, and her colleagues at Reata Equine Veterinary Group, in Tucson, Ariz., conducted a study to identify risk factors and create more awareness among veterinarians. She presented her results at the 2013 American Association of Equine Practitioners convention, held Dec. 7-11 in Nashville, Tenn.

EOTRH is a very painful disease primarily affecting horses’ incisors and canine teeth, Pearson explained. "In our experience, the teeth appear bulbous, irregular, and discolored," she said. "Gingival receding is often seen along with shifting of incisor positioning."

In previous reports, veterinarians have noted that the disease tends to appear in horses older than 15 and more commonly in Thoroughbreds and Warmbloods than in other breeds.

Treatment for EOTRH includes removing the affected teeth, a potentially painful procedure for the horse and a difficult one for the veterinarian that requires continuous follow-up evaluations to ensure the mouth remains balanced, Pearson said

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Alexandra Beckstett, a native of Houston, Texas, is a lifelong horse owner who has shown successfully on the national hunter/jumper circuit and dabbled in hunter breeding. After graduating from Duke University, she joined Blood-Horse Publications as assistant editor of its book division, Eclipse Press, before joining The Horse. She was the managing editor of The Horse for nearly 14 years and is now editorial director of EquiManagement and My New Horse, sister publications of The Horse.

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