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This report describes the clinical presentation and histopathological ﬁndings of two horses with equine odontoclastic tooth resorption and hypercementosis (EOTRH) affecting all cheek teeth. Equine odontoclastic tooth resorption and hypercementosis is a well documented condition known to affect the incisors, canines and occasionally the premolars in horses. At this time there have been no documented cases of EORTH affecting all cheek teeth described in the peer reviewed literature. This paper documents the ﬁrst reported cases of EOTRH affecting the cheek teeth in one horse in the United States and one from Germany.