EVDF OSLO NORWAY 2025

Equine Dentistry

Understanding tooth extractions aided by partial crown removal and sectioning in 1045 cases

Travis J. Henry, DVM Dipl. AVDC

Partial coronectomy and tooth sectioning has been utilized for extraction of horse’s teeth for almost a decade. The technique has been published and discussed in the literature as an adjunct method to aid conventional intraoral extraction procedures.1,2 Partial coronectomy is the process of removing the clinical crown from the occlusal surface in the interproximal space down to the level of the interproximal bone, creating a space between the teeth much the same as a diastema due to periodontal disease. This removes the crown interlock that is normally created due to the natural angulation of the horse’s dentition. Care is taken to only remove crown from the tooth being extracted. This process must be guided by radiography. Once this is accomplished, standard intraoral extraction techniques can be employed including spreading, luxation and manipulation with forceps. Tooth sectioning is done to separate the tooth into the respective roots. The tooth can often then be delivered with less force as only a portion of the tooth is being delivered. This also aids extractions of teeth with splayed root conformation. By sectioning the tooth, the roots can obtain a delivery pathway that is more appropriate. The mandibular teeth are sectioned into mesial and distal roots and the maxillary teeth are sectioned to separate the buccal roots from the palatal root. Furter if delivery is not able to be accomplished the maxillary teeth can have the buccal roots separated as well. In this presentation we will describe the appropriate types of cases and pitfalls that are experienced when performing these procedures. The presentation will be mostly case based with intraoral images and radiographs to describe the techniques.

References
1 Leps, Alexis, Korsos, Szabolcs ,Clarysse, Michèle, Vlaminck,Lieven.
Dental sectioning for intraoral equine cheek teeth extractions: 29 cases
Frontiers inn Veterinary Science 2024 Vol 11
www.frontiersin.org/articles/10.3389/fvets.2024.1367861
2 Rice, M.K.,Henry, T.J.
Standing intraoral extractions of cheek teeth aided by partial crown removal in 165 horses (2010–2016) Equine Veterinary Journal, 2018 Volume 50,Issue 1,Pgs 48-53, doi 10.1111/evj.12727