E quine Odontoclastic ToothResorption and Hypercementosis (EOTRH) is a painful and progressive dental disease, which affects the incisor and canine teeth of senior horses. 1 According to Vlaminck et al, 2 Icelandic horses appear to be more
toothresorption has been described in several species, 1–3 including dogs, 4–8 cats, 9–13 and humans. 14–17 It represents one of the most common dental conditions in cats (ie, resorption lesions). 9,12 Some types of toothresorption are progressive
The prevalence of toothresorption has been reported 1 for a group of 224 adult dogs for which full-mouth diagnostic-quality radiographs were obtained. In that study, 1 toothresorption was diagnosed and classified in accordance with
associated with many common oral tumors have been reported in veterinary and human medical literature, the radiographic appearance of teeth in animals with oral tumors has not been as well described, particularly regarding toothresorption. 1,2,6–10 Tooth
observed), any anomalies of dentition (number, eruption, shape, position, or persistent deciduous teeth), stage (1 to 4) of PD 11 for each tooth, and radiographic anomalies (root retention, supernumerary roots, tooth fractures, and TR). Toothresorption
teeth and prevent potential periapical infection.
Equine odontoclastic toothresorption and hypercementosis
Equine odontoclastic toothresorption and hypercementosis affecting mainly the incisors and canines has been recognized as a clinically
integrity, failure of the pulp cavity to narrow, periapical disease, and toothresorption. Anatomic and developmental findings were calculated on the basis of a full set of the canine dentition, all other disorders were calculated on the basis of the number
the periodontal ligament space buccal to the canine teeth.
In addition to alveolar bone loss, dental hard tissue abnormalities may include several types of toothresorption. In humans and dogs, 7 types of toothresorption, each with different
excluded by focusing only on 1 breed. In Europe, the Icelandic horse seems to be prone to dental disorders like Equine Odontoclastic ToothResorption and Hypercementosis (EOTRH). 8 Icelandic horses have been purebred in Iceland for over 1,000 years 9 and
supported the diagnosis of severe generalized toothresorption, mostly present as a combination of external surface resorption, external replacement resorption, external inflammatory resorption, and internal inflammatory or external cervical root surface