Volume 35, Issue 5 p. e364-e371
CASE REPORT

Computer-assisted removal of an ectopic tooth from the mandibular fossa through a mandibular condylectomy approach in a Comptois gelding

Eloïse Greim

Corresponding Author

Eloïse Greim

Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, Swiss Institute of Equine Medicine (ISME), University of Bern, Bern, Switzerland

Correspondence

Eloïse Greim

Email: [email protected]

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Mathieu de Preux

Mathieu de Preux

Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, Swiss Institute of Equine Medicine (ISME), University of Bern, Bern, Switzerland

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Christoph Koch

Christoph Koch

Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, Swiss Institute of Equine Medicine (ISME), University of Bern, Bern, Switzerland

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Ilaria Petruccione

Ilaria Petruccione

Division of Anaesthesiology and Pain Therapy, Department of Clinical Veterinary Sciences, Vetsuisse Faculty, University of Bern, Bern, Switzerland

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Micael D. Klopfenstein Bregger

Micael D. Klopfenstein Bregger

Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, Swiss Institute of Equine Medicine (ISME), University of Bern, Bern, Switzerland

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Elke van der Vekens

Elke van der Vekens

Division of Clinical Radiology, Department of Clinical Veterinary Sciences, Vetsuisse Faculty, University of Bern, Bern, Switzerland

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Hervé Brünisholz

Hervé Brünisholz

Department of Clinical Veterinary Medicine, Vetsuisse-Faculty, Swiss Institute of Equine Medicine (ISME), University of Bern, Bern, Switzerland

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First published: 05 December 2022

Summary

A 3-year-old Comptois gelding with a history of chronic fistulation at the base of the right ear was referred for the treatment of a unilateral ectopic tooth in the right temporal region. Cone-beam computed tomography (CBCT) confirmed the presence of an ectopic tooth in the right mandibular fossa. The ectopic tooth was associated with a draining tract running through the zygomatic process of the right temporal bone. A total mandibular condylectomy provided a direct approach to the ectopic tooth, which was subsequently successfully removed. Long-term follow-up confirmed a satisfactory outcome despite the need for repeated debridement and persistence of a small draining tract 15 months postoperatively. Computer-assisted surgery (CAS) provided precise anatomical intraoperative orientation for the condylectomy and subsequent removal of the ectopic tooth close to the calvarium. The use of CAS greatly facilitated surgery and minimised the risks of important collateral damage.

CONFLICT OF INTEREST

No conflicts of interest have been declared.