Department of Prosthetics and Integrated Clinics, School of Dentistry, Federal University of Bahia, Bahia, Brazil.
Academic Department of Technology in Health and Biology, Federal Institute of Bahia, Bahia, Brazil.
Aust Dent J. 2019 Jun;64(2):161-166. doi: 10.1111/adj.12685. Epub 2019 Apr 26.
To determine the accuracy of various cone beam computed tomography (CBCT) devices in assessing the buccal bone in anterior teeth.
A skull encased in tissue equivalent material was imaged with six CBCT devices: 3D Accuitomo 170 (J. Morita, Japan), CS 9000 3D (Carestream Dental, France), CS 9300 (Carestream Dental, France), Eagle 3D (Dabi Atlante, Brazil), i-CAT Classic (Imaging Sciences International, USA) and Orthophos XG 3D (Sirona Dental System, USA). The exposure and acquisition protocols were determined using the manufacturer's guidelines, the voxel size adjusted as close as possible to 0.2 mm. Cross-sectional images were evaluated randomly, and the buccal bone was assessed.
The statistics were calculated based on a logistic regression model with the significance level set at 5%. All CBCT devices showed high accuracy; however, observers noted that the accuracy and sensitivity of CS 9300 device were slightly superior.
The diagnostic performance of all CBCT devices was high for the evaluation of buccal bone in anterior teeth. When the clinical usefulness of an imaging modality is equivalent, the choice of appropriate imaging should be directed towards the modality that delivers the least radiation dose to the patient for a specific diagnostic task.
评估不同锥形束 CT（CBCT）设备在评估前牙颊侧骨的准确性。
使用 6 种 CBCT 设备对一个包裹在组织等效材料中的颅骨进行成像：3D Accuitomo 170（J. Morita，日本）、CS 9000 3D（Carestream Dental，法国）、CS 9300（Carestream Dental，法国）、Eagle 3D（Dabi Atlante，巴西）、i-CAT Classic（Imaging Sciences International，美国）和 Orthophos XG 3D（Sirona Dental System，美国）。使用制造商的指南确定曝光和采集协议，将体素大小尽可能调整到 0.2mm。随机评估横断面图像，并评估颊侧骨。
统计数据是基于逻辑回归模型计算的，显著性水平设置为 5%。所有 CBCT 设备均显示出较高的准确性；然而，观察者注意到 CS 9300 设备的准确性和灵敏度略高。
所有 CBCT 设备在评估前牙颊侧骨方面均具有较高的诊断性能。当一种成像方式的临床实用性相当时，应选择为特定诊断任务向患者提供最小辐射剂量的适当成像方式。
