Verstraete F J
J S Afr Vet Assoc. 1985 Sep;56(3):131-4.
Two cases of anomalous development of the upper third premolar in a dog and a cat are described. The involved teeth have a bifid crown and 3 roots. The central root is abnormally wide and has 2 separate root canals. The anomalous tooth is the cause of malocclusion in the cat and of periodontitis in both cases. The difficulty in distinguishing gemination from fusion is discussed.
描述了一只狗和一只猫上颌第三前磨牙发育异常的两个病例。受累牙齿有双裂冠和3个牙根。中央牙根异常宽阔，有2个独立的根管。异常牙齿是猫错牙合畸形的原因，也是两例牙周炎的病因。讨论了区分双生牙与融合牙的困难。
