SmartX不同扫描策略在全口种植修复数字印模中的精度比较研究OA
Comparative study on the accuracy of different SmartX scanning strategies in full-arch implant prosthetic digital impressions
目的 探讨SmartX口内扫描技术在全口种植修复数字印模中的真实度,并比较不同扫描策略对精度的影响.方法 将扫描杆分为沿牙槽嵴排列和向心性排列2 种,使用配备SmartX的口内扫描仪对All-on 6 上颌模型进行扫描,共获取60 次扫描(3 个模型×2 种方法×重复10 次),使用台式扫描仪数据作为对照.通过计算种植体基台之间的距离和角度偏差、均方根误差来评估真实度和精度.结果 SmartX沿牙槽嵴排列扫描策略下基台的距离和角度偏差、均方根误差分别为75.25(45.35,136.40)μm、0.47°±0.22°和88.05(67.75,99.88)μm;SmartX向心性排列扫描策略下基台的距离和角度偏差、均方根误差分别为113.90(81.93,315.60)μm、0.27°±0.18°和93.75(73.58,98.85)μm,Mann-Whitney U检验和配对样本t检验结果分别显示2 种扫描策略下种植体基台精度存在差异(P<0.05).结论 在本研究范围内,2 种SmartX扫描策略的距离、角度和均方根偏差低于临床被动就位的可接受范围,扫描策略是影响该系统印模精度的因素之一.
Objective To evaluate the trueness of SmartX intraoral scanning(IOS)for full-arch digital implant impressions and to compare the impact of different scanning strategies on accuracy.Methods Scan bodies were arranged in two configurations(along-the-ridge and centripetal)on three all-on-6 maxillary models.SmartX IOS performed 60 scans(3 models×2 strategies×10 repetitions).Desktop scanner data served as a reference.IOS scans were compared against reference scans,assessing trueness and precision via distance/angular deviations between implant abutments and root mean square(RMS)errors.Results For along-the-ridge scans:distance deviation=75.25(45.35,136.40)μm,angular deviation=0.47°±0.22°,RMS=88.05(67.75,99.88)μm.For centripetal scans:distance deviation=113.90(81.93,315.60)μm,angular deviation=0.27°±0.18°,RMS=93.75(73.58,98.85)μm.Mann-Whitney U and paired-samples t-tests indicated significant precision differences between strategies(P<0.05).Conclusion Both SmartX strategies produced clinically acceptable deviations below passive fit thresholds for full-arch digital impressions.Scanning strategy is one of the key factors affecting the impression precision of the system.
Gu Yanyan;Wang Yuzhuo;Fu Yuanfei;Wang Jie
Department of Dental Technology,Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine&College of Stomatology&Shanghai Jiao Tong University&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Shanghai Key Laboratory of Stomatology&Shanghai Research Institute of Stomatology,Shanghai 200011,ChinaDepartment of Dental Technology,Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine&College of Stomatology&Shanghai Jiao Tong University&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Shanghai Key Laboratory of Stomatology&Shanghai Research Institute of Stomatology,Shanghai 200011,ChinaDepartment of Dental Technology,Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine&College of Stomatology&Shanghai Jiao Tong University&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Shanghai Key Laboratory of Stomatology&Shanghai Research Institute of Stomatology,Shanghai 200011,ChinaDepartment of Dental Technology,Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine&College of Stomatology&Shanghai Jiao Tong University&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Shanghai Key Laboratory of Stomatology&Shanghai Research Institute of Stomatology,Shanghai 200011,China
全口种植口内扫描真实度精度体外实验
Full-arch implantIntraoral scanningTruenessPrecisionIn vitro study
《中国口腔种植学杂志》 2025 (6)
574-579,6
上海市卫健委青年项目(20224Y0356) Shanghai Municipal Health Commission Youth Research Program(20224Y0356)
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