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1 March 2011 Resorptive Tooth Root Lesions in the Malayan Tapir (Tapirus indicus)
Mari-Ann O. Da Silva, Hanne E. Kortegaard, Siew Shean Choong, Jens Arnbjerg, Mads F. Bertelsen
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Facial abscessation and osteomyelitis due to dental disease is commonly seen in the Malayan tapir (Tapirus indicus), but little is known about the prevalence or etiology of these lesions. To determine the prevalence of dental ailments, 56 skulls and mandibles of deceased Malayan tapirs were visually and radiographically evaluated. Dental lesions were scored according to severity, and individuals were classified according to their age (juvenile/young adult/adult) and origin (captive/free ranging). All of the lesions identified were of a resorptive nature, seemingly originating at the cementoenamel junction and burrowing towards the center of the tooth. Overall, 27% of the investigated skulls presented radiolucent dental lesions. The prevalence among captive animals was 52% (13/25), while only 6% (2/31) of the free-ranging tapirs had dental lesions. The second, third, and fourth premolars and first molar were the teeth most commonly affected, and the mandibular teeth were more often involved than the maxillary dentition. This study demonstrates a high prevalence of resorptive dental lesions in captive Malayan tapirs and provides a strong indication that age and captivity are significant risk factors in the development of these lesions.

Mari-Ann O. Da Silva, Hanne E. Kortegaard, Siew Shean Choong, Jens Arnbjerg, and Mads F. Bertelsen "Resorptive Tooth Root Lesions in the Malayan Tapir (Tapirus indicus)," Journal of Zoo and Wildlife Medicine 42(1), 40-43, (1 March 2011).
Received: 4 December 2009; Published: 1 March 2011

dental disease
Malayan tapir
resorptive lesions
Tapirus indicus
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