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Case Reports
. 2010 Oct;51(10):1152-6.

A case of facial deformity due to bilateral developmental maxillary cheek teeth displacement in an adult horse

Mickaël P Robert  1 , Monika C Gangl, Olivier M Lepage
Affiliations
Case Reports

A case of facial deformity due to bilateral developmental maxillary cheek teeth displacement in an adult horse

Mickaël P Robert et al. Can Vet J. 2010 Oct.

Abstract
in English, French

A 7-year-old mare presented with facial deformities associated with oral discomfort and weight loss was found to have bilateral, palatal, developmental displacements of the maxillary 08s, with secondary diastema. Following repulsion of both displaced teeth, the horse regained weight and resumed training. Bony deformities remained visible 9 mo after discharge.

Un cas de déformation faciale suite à un déplacement développemental bilatéral de dents molariformes chez un cheval adulte. Une jument de 7 ans présentée avec des déformations faciales associées à de l’inconfort oral et à une perte de poids a montré, après examen, des déplacements développementaux, bilatéraux, du coté palatal des 4e prémolaires supérieures, avec un diastème secondaire. Après répulsion des 2 dents déplacées, le cheval a regagné de l’état et repris l’entrainement. Les déformations osseuses étaient toujours visibles 9 mois après la sortie de la jument.

(Traduit par les auteurs)

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Figures

Figure 1
Figure 1
Horse at admission presenting a symmetric bilateral facial deformity dorsally to the rostral aspect of the facial crests.
Figure 2
Figure 2
Intra-oral view of the right maxillary arcade. Note the 2 juxtaposed cheek teeth separated by a diastema at the level of 107.
Figure 3
Figure 3
Intra-oral view of the left maxillary arcade. Note the 2 juxtaposed cheek teeth in close contact at the level of 207.
Figure 4
Figure 4
Dorso-ventral radiographic view of the dental arcades. A medial displacement of both 108 and 208 is suspected with a concurrent lateral displacement of 107, 207, and 209. At this level, the cortices of the maxillary bones appear to be deformed and thickened on both sides (#), with a periosteal reaction on the right side (arrows).
Figure 5
Figure 5
Sinistrodorsal-dextroventral oblique view of the dental arcades. Severe periapical osteolysis (*) and important osteocondensation (¤) are visible surrounding every maxillary premolar roots; 106 seems to be very inclined caudally.
Figure 6
Figure 6
Dextrodorsal-sinistroventral oblique view of the dental arcades. In addition to already described periapical osteolysis (*) and osteocondensation (¤), a focal overgrowth of 306 is visible (>).
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