A 33-year-old intact male Eastern Black rhinoceros (Diceros bicornis michaelii) presented for difficulty eating and quidding. Through a careful sedation process and physical examination, it was discovered that there was moderate tartar build-up on the buccal edges of all arcades. The lingual sides of both upper arcades were worn down to the gum line with moderate ulcerations of the mucosa. The tartar was manually removed and the diet modified to provide softer, more palatable food items to accommodate the ulcerations. Captive rhino health is greatly impacted by nutrition. In addition to dental disease, iron storage disease, and hemolytic anemia cause significant health problems in captive black rhinos, all of which can be linked back to nutrition. This paper will evaluate dental disease in a captive male Eastern Black rhino and discuss the implications of nutrition as it relates to a variety of disease states in captive rhinos.