Heney Colleen M, Arzi Boaz, Kass Philip H, Hatcher David C, Verstraete Frank J M
Dentistry and Oral Surgery Service, School of Veterinary Medicine, William Pritchard Veterinary Medical Teaching Hospital, University of California, Davis, Davis, CA, United States.
Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States.
Front Vet Sci. 2019 Feb 21;6:42. doi: 10.3389/fvets.2019.00042. eCollection 2019.
The objective of this study was to evaluate the diagnostic yield of dental radiography (DR) and 3 cone-beam computed tomography (CBCT) software modules for the identification of 32 pre-defined dentoalveolar lesions in cats. For 5 feline cadaver heads and 22 client-owned cats admitted for evaluation and treatment of dental disease, 32 predefined dentoalveolar lesions were evaluated separately and scored by use of dental radiography and 3 CBCT software modules [multiplanar reconstructions (MPR), tridimensional (3-D) rendering, and reconstructed panoramic views]. A qualitative scoring system was used. Dentoalveolar lesions were grouped into 14 categories for statistical analysis. Point of reference for presence or absence of a dentoalveolar lesion was determined as the method that could be used to clearly identify the disorder as being present. Accuracy, sensitivity, specificity, and positive and negative predictive values were calculated with the McNemar χ test of marginal homogeneity of paired data. When all 3 CBCT software modules were used in combination, the diagnostic yield of CBCT was significantly higher than that of dental radiography for 4 of 14 categories (missing teeth, horizontal bone loss, loss of tooth integrity, feline resorptive lesions), and higher, although not significantly so, for 9 categories (supernumerary teeth, supernumerary roots, abnormally shaped roots, vertical bone loss, buccal bone expansion, periapical disease, inflammatory root resorption, and external replacement root resorption). In conclusion, we found that CBCT provided more clinically relevant detailed information as compared to dental radiography. Therefore, CBCT should be considered better suited for use in diagnosing dentoalveolar lesions in cats.
本研究的目的是评估牙科X线摄影（DR）和3种锥束计算机断层扫描（CBCT）软件模块对猫32种预先定义的牙槽病变的诊断效能。对于5个猫尸体头部和22只因牙科疾病入院评估和治疗的客户拥有的猫，分别使用牙科X线摄影和3种CBCT软件模块[多平面重建（MPR）、三维（3-D）渲染和重建全景视图]对32种预先定义的牙槽病变进行评估并评分。采用定性评分系统。牙槽病变分为14类进行统计分析。牙槽病变存在与否的参考点被确定为可用于明确识别疾病存在的方法。使用配对数据边际同质性的McNemar χ检验计算准确性、敏感性、特异性以及阳性和阴性预测值。当联合使用所有3种CBCT软件模块时，CBCT在14类中的4类（牙齿缺失、水平骨丧失、牙齿完整性丧失、猫吸收性病变）的诊断效能显著高于牙科X线摄影，在9类（多生牙、多生牙根、牙根形态异常、垂直骨丧失、颊侧骨膨胀、根尖周疾病、炎性牙根吸收和外部替代性牙根吸收）中虽无显著差异但也更高。总之，我们发现与牙科X线摄影相比，CBCT提供了更多临床上相关的详细信息。因此，CBCT应被认为更适合用于诊断猫的牙槽病变。
