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	<span>口内扫描对动态导航引导下种植体植入精度的评估</span>

doi:10.12439/kqhm.1005-4979.2025.03.006

摘要/Abstract

摘要：

目的：采用数字化口腔内扫描（intraoral scan，IOS）方法评估动态导航引导下种植修复的准确性，并将该技术与传统的锥形束 CT (cone beam CT，CBCT) 评估方法进行比较，为 IOS 评估方法的可行性提供进一步的证据。方法：打印 60 个下颌树脂模型，使用动态导航计算机辅助种植手术（computer-aided implant surgery，CAIS）在每个模型上植入2 枚种植体（31 牙和 36 牙），共植入 120 枚种植体。术后采用 CBCT 和 IOS 2 种方法获取种植体的植入位置，并将数据导入精度验证软件中测量种植体的偏差。结果：比较 CBCT 和 IOS 2 种评估方法计算的植入点总偏差和角度偏差，差异具有统计学意义（均 P<0.01），其余偏差差异均无统计学意义。在 31 位点，2 种方法植入点的总偏差、横向偏差和角度偏差差异均具有统计学意义（均 P<0.01）；在 36 位点，2 种方法的植入点深度偏差、根尖点深度偏差和角度偏差差异具有统计学意义（均 P<0.05）。结论：IOS 方法评估种植精度的准确性与传统 CBCT 评估方法较为一致，能达到临床要求，但仍需要进一步的临床研究来验证该方法的准确性和可行性。

关键词:

口腔内扫描, 动态导航, 种植精度, 锥形束 CT

Abstract:

Objective: To evaluate the accuracy of implant placement guided by dynamic navigation by comparing digital intraoral scanning (IOS) with the traditional cone beam CT (CBCT)-based method, and to provide further evidence for the feasibility of using IOS as an evaluation tool. Methods: Sixty mandibular resin models were printed, and 2 implants (31 and 36) were placed in each model using dynamic computer-aided implant surgery. One hundred and twenty implants were placed. Postoperatively, the achieved implant positions were assessed using both CBCT and IOS. The implant deviations were then measured by importing the data into an accuracy analysis software. Results: Significant differences between CBCT and IOS were observed in global coronal and angular deviations (P<0.01), but not for the other deviations. The differences between the two methods were statistically significant for the global coronal, lateral coronal, and angular deviations (P<0.01) at site 31, and for the vertical coronal, vertical apical, and angular deviations (P<0.05) at site 36. Conclusion: The accuracy of the IOSbased evaluation method for measuring implant accuracy is consistent with that of the conventional CBCT assessment method and meets the clinical requirements. However, further clinical study is required to confirm the accuracy and feasibility of this method.

Key words:

intraoral scan, dynamic navigation, implant accuracy, cone beam CT

中图分类号:

R782

刘怡田, 许宗和, 肖妍君, 许其印, 郭雯, 张思慧, 吴东.

口内扫描对动态导航引导下种植体植入精度的评估[J]. 《口腔颌面外科杂志》, 2025, 35(3): 205-213.

LIU Yitian, XU Zonghe, XIAO Yanjun, XU Qiyin, GUO Wen, ZHANG Sihui, WU Dong.

Evaluation of the implant placement accuracy under dynamic navigation guidance using intraoral scanning[J]. 《Journal of Oral and Maxillofacial Surgery》, 2025, 35(3): 205-213.

https://journal06.magtech.org.cn/Jweb_joms/CN/Y2025/V35/I3/205

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口内扫描对动态导航引导下种植体植入精度的评估

Evaluation of the implant placement accuracy under dynamic navigation guidance using intraoral scanning

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