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Vet J. 2008 Dec;178(3):372-9. doi: 10.1016/j.tvjl.2008.09.017. Epub 2008 Nov 17.

Equine odontoclastic tooth resorption and hypercementosis.

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1
Institute of Anatomy, University of Veterinary Medicine Hannover, Bischofsholer Damm 15, D-30173 Hannover, Germany. carsten.staszyk@tiho-hannover.de

Abstract

A poorly described, painful disorder of incisor and canine teeth, variably causing periodontitis, with resorptive or proliferative changes of the calcified dental tissues, has recently been documented in aged horses. No plausible aetiopathogenesis for this syndrome has been recorded. Eighteen diseased teeth from eight horses were examined grossly and microscopically and showed the presence of odontoclastic cells by tartrate resistant acid phosphatase (TRAP) staining. A chronological sequence of odontoclastic resorption followed by hypercementosis was demonstrated and, consequently, the term equine odontoclastic tooth resorption and hypercementosis (EOTRH) is proposed for this disorder. EOTRH shares many features with similar dental syndromes described in humans and cats. An aetiological hypothesis proposes mechanical stress of the periodontal ligament as the initiating factor.

PMID:
19010701
DOI:
10.1016/j.tvjl.2008.09.017
[Indexed for MEDLINE]
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