Li Hong, Ma Feifei, Weng Jinlong, DU Yang, Wu Binzhang, Sun Feng
First Clinical Division, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
Beijing Da Xue Xue Bao Yi Xue Ban. 2025 Feb 18;57(1):85-90. doi: 10.19723/j.issn.1671-167X.2025.01.013.
Dynamic navigation approaches are widely employed in the context of implant placement surgery. Implant surgery can be divided into immediate and delayed surgery according to the time of implantation. This retrospective study was developed to compare the accuracy of dynamic navigation system for immediate and delayed implantations.
In the study, medical records from all patients that had undergone implant surgery between August 2019 and June 2021 in the First Clinical Division of the Peking University School and Hospital of Stomatology were retrospectively reviewed. There were 97 patients [53 males and 44 females, average age (47.14±11.99) years] and 97 implants (delayed group: 51; immediate group: 46) that met with study inclusion criteria and were included. Implant placement accuracy was measured by the superposition of the planned implant position in the preoperative cone beam computed tomography (CBCT) image and the actual implant position in the postoperative CBCT image. The 3-dimensional (3D) entry deviation (3D deviation in the coronal aspect of the alveolar ridge), 3D apex deviation (3D deviation in the apical area of the implant) and angular deviation were analyzed as the main observation index when comparing these two groups. The 2-dimensional (2D) horizontal deviation of the entry point and apex point, and the deviation of entry point depth and apex point depth were the secondary observation index.
The overall implant restoration survival rate was 100%, and no mechanical or biological complications were reported. The implantation success rate was 100%. The 3D entry deviation, 3D apex deviation and angular deviation of all analyzed implants were (1.146±0.458) mm, (1.276±0.526) mm, 3.022°±1.566°, respectively; while in the delayed group these respective values were (1.157±0.478) mm, (1.285±0.481) mm and 2.936°±1.470° as compared with (1.134±0.440) mm, (1.265±0.780) mm, 3.117°±1.677° in the immediate group. No significant differences (=0.809, =0.850, =0.575) in accuracy were observed when comparing these two groups.
Dynamic computer-assisted implant surgery system promotes accurate implantation, and both the immediate and delayed implantations exhibit similar levels of accuracy under dynamic navigation system that meets the clinical demands. Dynamic navigation system is feasible for immediate implantation.
动态导航技术在种植体植入手术中应用广泛。根据种植时间，种植手术可分为即刻种植和延期种植。本回顾性研究旨在比较动态导航系统在即刻种植和延期种植中的准确性。
本研究回顾性分析了2019年8月至2021年6月期间于北京大学口腔医院第一临床科室接受种植手术的所有患者的病历。共有97例患者[男性53例，女性44例，平均年龄（47.14±11.99）岁]及97颗种植体（延期组：51颗；即刻组：46颗）符合研究纳入标准并被纳入研究。种植体植入准确性通过术前锥形束计算机断层扫描（CBCT）图像中计划种植体位置与术后CBCT图像中实际种植体位置的叠加来测量。比较两组时，将三维（3D）入口偏差（牙槽嵴冠状面的3D偏差）、3D根尖偏差（种植体根尖区域的3D偏差）和角度偏差作为主要观察指标。入口点和根尖点的二维（2D）水平偏差以及入口点深度和根尖点深度偏差作为次要观察指标。
种植体修复总成功率为100%，未报告机械或生物学并发症。种植成功率为100%。所有分析种植体的3D入口偏差、3D根尖偏差和角度偏差分别为（1.146±0.458）mm、（1.276±0.526）mm、3.022°±1.566°；延期组的相应值分别为（1.157±0.478）mm、（1.285±0.481）mm和2.936°±1.470°，即刻组分别为（1.134±0.440）mm、（1.265±0.780）mm、3.117°±1.677°。比较两组时，未观察到准确性方面的显著差异（=0.809，=0.850，=0.575）。
动态计算机辅助种植手术系统可提高种植准确性，在动态导航系统下，即刻种植和延期种植的准确性相似，均满足临床需求。动态导航系统用于即刻种植是可行的。
