Department of Second Dental Center, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
Department of Oral Implantology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
Clin Implant Dent Relat Res. 2020 Dec;22(6):747-755. doi: 10.1111/cid.12958. Epub 2020 Oct 28.
Cone-beam computed tomography (CBCT) and conventional multislice CT (MSCT) are both used in zygomatic implant navigation surgery but the superiority of one technique versus the other remains unclear.
This study compared the accuracy of CBCT and MSCT in zygomatic implant navigation surgery by calculating the deviations of implants.
Patients with severely atrophic maxillae were classified into two groups according to the use of CBCT- or MSCT-guided navigation system. The entry and apical distance deviation, and the angle deviation of zygomatic implants were measured on fused operation images. A linear effect model was used for analysis, with statistical significance set at P < .05.
A total of 72 zygomatic implants were inserted as planned in 23 patients. The comparison of deviations in CBCT and MSCT groups showed a mean (± SD) entry deviation of 1.69 ± 0.59 mm vs 2.04 ± 0.78 mm (P = .146), apical deviation of 2 ± 0.68 mm vs 2.55 ± 0.85 (P < .001), and angle deviation of 2.32 ± 1.02° vs 3.23 ± 1.21° (P = .038).
Real-time zygomatic implant navigation surgery with CBCT may result in higher values for accuracy than MSCT.
锥形束 CT（CBCT）和传统多层 CT（MSCT）均可用于颧骨种植导航手术，但一种技术优于另一种技术的优势尚不清楚。
本研究通过测量种植体的偏差，比较 CBCT 和 MSCT 在颧骨种植导航手术中的准确性。
根据使用 CBCT 或 MSCT 引导导航系统，将严重上颌骨萎缩的患者分为两组。在融合手术图像上测量颧种植体的入口和根尖距离偏差以及角度偏差。采用线性效应模型进行分析，以 P <.05 为统计学意义标准。
23 例患者共计划植入 72 枚颧骨种植体。CBCT 组和 MSCT 组偏差的比较显示，入口偏差的平均值（±标准差）分别为 1.69±0.59mm 和 2.04±0.78mm（P =.146），根尖偏差分别为 2.0±0.68mm 和 2.55±0.85mm（P <.001），角度偏差分别为 2.32±1.02°和 3.23±1.21°（P =.038）。
与 MSCT 相比，实时颧骨种植导航手术中使用 CBCT 可能会获得更高的准确性值。
