EORTH

This is an interesting case where the signs of outward dental disease are very subtle, but radiographs clearly show the hidden pathology 🦷 On a routine dental examination, a close inspection of the incisor teeth revealed some clues that this horse was suffering from Equine Odontoclastic Tooth Resorption and Hypercementosis (EOTRH). The gums were recessed and feed had started to pack into the gaps that were forming in between the incisor teeth. Small, red pimple like lesions were seen around the corner incisors indicating purulent draining tracts from an infected tooth.

Survey radiographs confirmed the presence of EOTRH, with the corner incisors most severely affected. This condition causes an inflammatory reaction in the incisors causing resorption (dissolving) of the teeth. Some horses, like this one here, then produce excess cementum (calcified tissue) around the affected teeth in an attempt to stabilise the teeth. This will be seen as a bulbous enlargement of the tooth, as seen in this radiograph.

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