Roux P, Berger M, Stoffel M, Stich H, Doherr M G, Bosshard D, Schawalder P
Department of Surgery, Orthopedics and Stomatology, College of Veterinary Clinical Medicine, VETSUISSE Faculty, University of Berne, Switzerland.
J Vet Dent. 2005 Jun;22(2):74-85. doi: 10.1177/089875640502200201.
The etiology of feline dental resorptive lesions is unknown, but some evidence suggests that interactions between components of the periodontium may be initiating factors in the development of these lesions. In the present study, 22 clinically normal teeth were harvested from 7 cats. The teeth and periodontium were radiographed and examined histologically. In addition, 14 of the 22 teeth were examined histometrically. Two teeth were histologically normal with an open apical foramen and two were normal with a closed apical foramen. Histological evidence of periodontal ligament degeneration without cementum resorption was observed in 8 teeth, and varying degrees of cementum resorption were observed in 10 teeth. Mandibular molar and premolar teeth had distal drift, and mandibular canine teeth had mesial drift. Alterations in the periodontal ligament may represent a preclinical stage of dental resorption.
猫牙吸收性病变的病因尚不清楚，但一些证据表明，牙周组织各成分之间的相互作用可能是这些病变发展的起始因素。在本研究中，从7只猫身上采集了22颗临床正常的牙齿。对牙齿和牙周组织进行了放射照相并进行了组织学检查。此外，对22颗牙齿中的14颗进行了组织测量学检查。两颗牙齿组织学正常，根尖孔开放，两颗牙齿组织学正常，根尖孔闭合。8颗牙齿观察到牙周膜退变但无牙骨质吸收的组织学证据，10颗牙齿观察到不同程度的牙骨质吸收。下颌磨牙和前磨牙有远中漂移，下颌尖牙有近中漂移。牙周膜的改变可能代表牙吸收的临床前期阶段。
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