Journal of Oral Science Research ›› 2026, Vol. 42 ›› Issue (3): 201-205.DOI: 10.13701/j.cnki.kqyxyj.2026.03.005

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Effect of Reset Times of Registration U-tube on Accuracy of Dynamic Navigation Implantation

SHAO Xupeng1,2, DONG Chenxin3, ZHANG Shu3, YANG Shengyin1, XIE Zhigang2,3*   

  1. 1. First Outpatient Department, Kunming Medical University School and Hospital of Stomatology, Kunming 650000, China;
    2. Yunnan Key Laboratory of Stomatology, Kunming 650000, China;
    3. Department of Oral Implantology, Kunming Medical University School and Hospital of Stomatology, Kunming 650000, China
  • Received:2025-10-09 Published:2026-03-26

Abstract: Objective: To compare the effect of reset times of the registration U-tube on the accuracy of dynamic navigation implantation. Methods: In this study, the reset times of the U-tube was divided into One-time reset and Two-time reset. The implants were placed under the guidance of dynamic navigation, among the 72 implants, 27 were in the One-time reset group and 45 were in the Two-time reset group. The differences between the planned implant position and actual implant position in terms of three indicators, i.e. the entry deviation, apex deviation, and angular deviation, were compared. Results: The entry deviation, apex deviation, and angular deviation of One-time reset group and Two-time reset group were (0.94±0.41) mm and (1.10±0.41) mm, (0.93±0.38) mm and (1.15±0.37) mm, and (1.19±0.97)° and (2.32±0.78)°. No significant difference was found on the entry deviation and angular deviation between One-time reset group and Two-time reset group (P>0.05), however, statistically significant difference in the apex deviation (P<0.05), with the Two-time reset group showed a larger deviation than One-time reset group. Conclusion: The accuracy of the U-tube reset will affect the implantation accuracy of the dynamic navigation. In clinical practice, the deviation caused by reset times of the registration U-tube should be considered. The U-tube should be worn before surgery to scan cone beam computed tomography (CBCT) and then removed after the registration. The One-time reset not only optimizes clinical procedures but also improves clinical efficiency, while reducing deviation and enhancing the accuracy of implant surgery.

Key words: dynamic navigation, registration, U-tube, accuracy