Effect of Alveolar Ridge Inclination on Dynamic Navigation Accuracy of Implant Surgery: A Retrospective Clinical Study.

IF 1.8 Q3 DENTISTRY, ORAL SURGERY & MEDICINE

Clinical, Cosmetic and Investigational Dentistry Pub Date : 2026-10-15 eCollection Date: 2026-01-01 DOI:10.2147/CCIDE.S636643

Xuechun Jiang, Ran Zhang, Huiyun Jiang, Ni Zeng, Huimin Nie, Wenjuan Zhou, Zhonghao Liu

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Abstract

Objective: To evaluate the accuracy of dynamic navigation-guided dental implantation system across different alveolar ridge inclinations.

Materials and methods: This retrospective study included 34 patients (120 implants) who underwent dynamic navigation-assisted dental implantation between January 2021 and December 2025. Deviations at the entry point of the initial drill and pilot drill were recorded to analyze the influence of alveolar ridge inclination on surgical accuracy. Preoperative and postoperative cone-beam computed tomography (CBCT) scans were automatically superimposed using specialized software to calculate deviations between planned and actual implant positions. Angular, entry point, and apex deviations were measured in both two-dimensional and three-dimensional measurements.

Results: The adjusted GEE analysis showed no significant overall difference in initial drill deviation among the three inclination groups (P=0.062), whereas a significant overall difference was observed in implant entry-point deviation (P=0.023). None of the pairwise comparisons remained statistically significant after FDR correction. In the continuous-angle analysis, ridge angle was significantly associated with initial drill deviation after FDR correction.

Conclusion: Alveolar ridge inclination was associated with differences in initial drill deviation in dynamic navigation-assisted implant surgery. Patients with high alveolar ridge inclinations exhibit lower accuracy compared with those with low inclinations.

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牙槽嵴倾角对种植手术动态导航精度影响的回顾性临床研究。

目的：评价动态导航引导种植系统在不同牙槽嵴倾角下种植的准确性。材料和方法：本回顾性研究包括34例患者（120种植体），于2021年1月至2025年12月期间进行了动态导航辅助种植。记录初始钻头和导钻入口点的偏差，分析牙槽嵴倾角对手术精度的影响。术前和术后锥形束计算机断层扫描（CBCT）扫描自动叠加使用专门的软件来计算计划和实际种植体位置之间的偏差。在二维和三维测量中测量角、入口点和顶点偏差。结果：调整后的GEE分析显示，三个倾斜组的钻头初始偏差总体差异无统计学意义（P=0.062），种植体入点偏差总体差异有统计学意义（P=0.023）。经FDR校正后，两两比较均无统计学意义。在连续角度分析中，脊角与FDR校正后的初始钻斜显著相关。结论：在动态导航辅助种植手术中，牙槽嵴倾角与初始钻偏有关。高牙槽嵴倾斜度的患者与低倾斜度的患者相比，显示出较低的准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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