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Accuracy of Digital Impressions and Fitness of Single Crowns Based on Digital Impressions
Yang, Xin1; Lv, Pin1; Liu, Yihong2; Si, Wenjie3; Feng, Hailan1
关键词digital impressions accuracy fitness
刊名MATERIALS
2015-07-01
DOI10.3390/ma8073945
8期:7页:3945-3957
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Materials Science, Multidisciplinary
研究领域[WOS]Materials Science
关键词[WOS]ALL-CERAMIC CROWNS ; IN-VITRO ; DIMENSIONAL STABILITY ; DENTAL IMPRESSIONS ; CLINICAL-EVALUATION ; MARGINAL FIT ; PRECISION ; CEMENTATION ; TECHNOLOGY ; ADAPTATION
英文摘要

In this study, the accuracy (precision and trueness) of digital impressions and the fitness of single crowns manufactured based on digital impressions were evaluated. #14-17 epoxy resin dentitions were made, while full-crown preparations of extracted natural teeth were embedded at #16. (1) To assess precision, deviations among repeated scan models made by intraoral scanner TRIOS and MHT and model scanner D700 and inEos were calculated through best-fit algorithm and three-dimensional (3D) comparison. Root mean square (RMS) and color-coded difference images were offered. (2) To assess trueness, micro computed tomography (micro-CT) was used to get the reference model (REF). Deviations between REF and repeated scan models (from (1)) were calculated. (3) To assess fitness, single crowns were manufactured based on TRIOS, MHT, D700 and inEos scan models. The adhesive gaps were evaluated under stereomicroscope after cross-sectioned. Digital impressions showed lower precision and better trueness. Except for MHT, the means of RMS for precision were lower than 10 m. Digital impressions showed better internal fitness. Fitness of single crowns based on digital impressions was up to clinical standard. Digital impressions could be an alternative method for single crowns manufacturing.

语种英语
WOS记录号WOS:000359898300011
项目编号512111179
资助机构National Natural Science Foundation of China
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/63202
专题北京大学口腔医学院_综合治疗科
北京大学第三临床医学院_成形外科
北京大学口腔医学院_口腔修复科
作者单位1.Peking Univ, Dept Prosthodont, Sch & Hosp Stomatol, Beijing 100081, Peoples R China
2.Peking Univ, Dept Gen Dent, Sch & Hosp Stomatol, Beijing 100081, Peoples R China
3.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Yang, Xin,Lv, Pin,Liu, Yihong,et al. Accuracy of Digital Impressions and Fitness of Single Crowns Based on Digital Impressions[J]. MATERIALS,2015,8(7):3945-3957.
APA Yang, Xin,Lv, Pin,Liu, Yihong,Si, Wenjie,&Feng, Hailan.(2015).Accuracy of Digital Impressions and Fitness of Single Crowns Based on Digital Impressions.MATERIALS,8(7),3945-3957.
MLA Yang, Xin,et al."Accuracy of Digital Impressions and Fitness of Single Crowns Based on Digital Impressions".MATERIALS 8.7(2015):3945-3957.
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