A 22 year old pony with poor body condition and pain due to severe resorption of the mandibular incisors with only fragments of the teeth remaining is described. The most severely damaged teeth were extracted, and the pony did well for 17 months, but then continued resorption in the maxillary incisors, which was seen at first presentation, became a problem due to periodontitis and pain. Intra oral radiography, computer tomography and histopathology were used to document the tooth resorption. In

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... this case resorption was demonstrated but there was no cemental thickening evident. Progression of the odontoclastic resorption of the incisors was followed with repeated radiographs over 17 months.