Lommer M J, Verstraete F J
Veterinary Medical Teaching Hospital and the Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis 95616, USA.
J Am Vet Med Assoc. 2000 Dec 15;217(12):1866-9. doi: 10.2460/javma.2000.217.1866.
To determine whether odontoclastic resorption lesions were associated with radiographic evidence of periapical lucencies in cats.
Retrospective study.
265 feline dental patients.
Full-mouth radiographs were examined for evidence of odontoclastic resorption lesions, periapical lucencies, periodontitis, and fractured teeth.
Odontoclastic resorption lesions affecting 567 teeth were identified in 161 (60.8%) cats. Periapical lucencies were identified in 53 teeth in 35 cats. Periapical lucencies were most commonly associated with fractured teeth (25 teeth with periapical lucencies) and severe periodontitis (21 teeth). None of the periapical lucencies appeared to be specifically associated with resorption lesions. Prevalence of periapical lucencies in cats with resorption lesions was not significantly different from prevalence in cats without.
Results suggest that although odontoclastic resorption lesions are common in cats, pulpal involvement associated with these lesions does not appear to be associated with development of radiographically detectable periapical lucencies. Crown amputation with intentional root retention may, therefore, be a suitable alternative to extraction in selected cats with odontoclastic resorption lesions.
确定牙破骨细胞吸收性病变是否与猫根尖周透射区的影像学证据相关。
回顾性研究。
265只猫牙科患者。
检查全口X光片，以寻找牙破骨细胞吸收性病变、根尖周透射区、牙周炎和牙齿折断的证据。
在161只（60.8%）猫中发现了影响567颗牙齿的牙破骨细胞吸收性病变。在35只猫的53颗牙齿中发现了根尖周透射区。根尖周透射区最常与牙齿折断（25颗有根尖周透射区的牙齿）和重度牙周炎（21颗牙齿）相关。没有根尖周透射区似乎与吸收性病变有特定关联。有吸收性病变的猫根尖周透射区的患病率与没有吸收性病变的猫的患病率没有显著差异。
结果表明，虽然牙破骨细胞吸收性病变在猫中很常见，但与这些病变相关的牙髓受累似乎与影像学上可检测到的根尖周透射区的发展无关。因此，对于患有牙破骨细胞吸收性病变的特定猫，保留牙根的冠部切除术可能是拔牙的合适替代方法。
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