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Updated: Oct 22, 2026
Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla
Published on: October 18, 2021
Effect of Alveolar Ridge Inclination on Dynamic Navigation Accuracy of Implant Surgery: A Retrospective Clinical
Xuechun Jiang1, Ran Zhang1, Huiyun Jiang1
1Department of Implantology, Stomatological Hospital Shandong Medical and Pharmaceutical University, Yantai, Shandong, People's Republic of China.
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.
