Novel treatment of equine odontoclastic tooth resorption and hypercementosis of incisor teeth in a 22-year-old Arabian mare.

Equine odontoclastic tooth resorption and hypercementosis is a rarely reported condition in the incisor and canine teeth of older horses. Histologically, there is internal and external resorption of the tooth with formation of excessive cementum. Once lesions become infected or supragingival this condition is very painful. The clinical manifestation, diagnosis and treatment of hypercementosis in an Arabian mare are described.

Traitement innovateur de la résorption dentaire odontoclasique et de l'hypercémentose de la dent incisive chez une jument arabe âgée de 22 ans. La résorption dentaire odontoclasique et l'hypercémentose représentent une affection rarement signalée des dents incisives et canines chez les chevaux âgés. Sur le plan histologique, il se produit une résorption interne et externe de la dent avec une formation excessive de cément. Une fois que les lésions deviennent infectées ou supra-gingivales, cette affection est très douloureuse. La manifestation clinique, le diagnostic et le traitement de l'hypercémentose sont décrits chez une jument arabe.(Traduit par Isabelle Vallières).

Equine Odontoclastic Tooth Resorption and Hypercementosis.

Equine odontoclastic tooth resorption and hypercementosis (EOTRH) is a recently described painful and progressive condition of unknown etiology that occurs in middle-aged and geriatric equines. It predominantly affects the permanent incisor and canine teeth and, less commonly, the premolar and molar dentition. EOTRH was first reported in peer-reviewed literature in 2008, with subsequent publications of case reports, histological studies and retrospective case series. There have been few significant research developments related to this disease. The existing studies have primarily involved single case studies or small sample sizes, without control groups. This review aimed to report current information about EOTRH in terms of clinical, histopathological, diagnostic, radiological, and therapeutic aspects, by searching the available peer-reviewed scientific literature.

Focal hypercementosis affecting a mandibular molar: a case report.

Hypercementosis is an abnormal thickening of the cementum. Although the etiology of this condition is uncertain, it occasionally is related to disorders of bone metabolism, including Paget disease and hyperthyroidism. The case presented here illustrates localized idiopathic deposition of excess cementum at the apex of the distal root of a mandibular first molar.

Generalised Hypercementosis in a Young Female Seeking Extraction: Revision and Update of Surgical Technique.

Hypercementosis is an excessive cementum deposition at the tooth root apex which occurs pathologically and represents as a body reaction to various stimulating factors including infection or endodontic treatment in most cases. Although hypercementosis mostly complicates teeth extraction, it is rare in daily dental practice. In the present case report, a generalised maxillary and mandibular hypercementosis in a young female patient is represented with a detailed description of its histologic, radiographic, and clinical characteristics followed by a review of surgical technique. It is clinically relevant to correlate hypercementosis of teeth, the feasibility of the best surgical method, in order to achieve a safe uncomplicated extraction.

History, clinical findings and outcome of horses with radiographical signs of equine odontoclastic tooth resorption and hypercementosis.

The progression of equine odontoclastic tooth resorption and hypercementosis (EOTRH) has not been completely evaluated, and currently, the only effective treatment is extraction of severely affected teeth. We aim to describe how the disease relates to the history and clinical findings and to report on the outcome in individual horses. This case series comprises data collected from 20 horses (age 14-29 years old) with radiographic findings of EOTRH in their incisor and/or canine teeth. Most horses affected with EOTRH in this study were admitted for dental problems, but some for other complaints such as colic. Of the 288 teeth evaluated radiographically, 224 teeth were abnormal. Radiographic findings were most frequently located in the apical aspect and reserve crown of the teeth, and lesions were also commonly found in clinically normal teeth. Histopathology of extracted teeth showed inflammation in the periodontal ligament and revealed that resorption often extended to the dentine. Some owners were unwilling to allow extraction of their horses' severely affected teeth, even though this treatment has been shown to increase the wellbeing of the horse. As EORTH is a life-long condition, the progression of the disease has to be continuously monitored and the treatments adjusted accordingly.