中文版 | English
Title

The cumulative effect of error in the digital workflow for complete-arch implant-supported frameworks: An in vitro study

Author
Corresponding AuthorPow, Edmond H. N.
Publication Years
2022-07-01
DOI
Source Title
ISSN
0905-7161
EISSN
1600-0501
Abstract
["Purpose: To investigate the error accumulation and distribution through various stages of the digital workflow for complete-arch implant-supported framework fabrication.","Materials and methods: A resin model of edentulous maxilla with 6 dental implants was scanned using an intraoral scanner for 10 times (Complete-digital group). Ten conventional gypsum casts were made and digitized by a laboratory scanner (Analogue-digital group). Five implant frameworks were designed and milled using CAD-CAM technique for each workflow. Inter-implant distances and angles of the resin model (reference) and frameworks were measured by a coordinate measuring machine, while the scans and virtual frameworks were examined by an inspection software. Effect of type of workflow and the individual stage on the accuracy of the frameworks were analysed by Two-way ANOVA.","Results: The expanded uncertainty of both workflows was similar to 150 mu m and similar to 0.8 degrees. The accuracy of the CAD stage was the highest. In the complete-digital workflow, the greatest distortion was found in the data acquisition stage, while in the analogue-digital workflow, it was found in the CAM stage. Compared with the analogue-digital group, the complete-digital group showed a significant higher precision in the first quadrant, but lower trueness in the second quadrant in data acquisition, and a significantly lower precision in the second quadrant at the CAD stage.","Conclusions: Linear distortions of the complete-digital and analogue-digital workflows were clinically acceptable, while angular distortions were not. Distortions were generally derived from data acquisition and CAM stage. The CAD precision depended on the distortions derived from data acquisition. The complete-digital workflow was not as accurate as the analogue-digital in complete-arch implant rehabilitation."]
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First
WOS Research Area
Dentistry, Oral Surgery & Medicine ; Engineering
WOS Subject
Dentistry, Oral Surgery & Medicine ; Engineering, Biomedical
WOS Accession No
WOS:000822715200001
Publisher
ESI Research Field
CLINICAL MEDICINE
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:2
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/355850
DepartmentShenzhen People's Hospital
Affiliation
1.Southern Univ Sci & Technol, Dept Dent, Shenzhen Peoples Hosp, Clin Med Coll 2,Affiliated Hosp 1,Jinan Univ, Shenzhen, Peoples R China
2.Univ Hong Kong, Fac Dent, Hong Kong, Peoples R China
3.Sun Yat Sen Univ, Guanghua Sch Stomatol, Hosp Stomatol, Guangdong Prov Key Lab Stomatol, Guangzhou, Peoples R China
First Author AffilicationShenzhen People's Hospital
First Author's First AffilicationShenzhen People's Hospital
Recommended Citation
GB/T 7714
Pan, Yu,Tsoi, James Kit Hon,Lam, Walter Y. H.,et al. The cumulative effect of error in the digital workflow for complete-arch implant-supported frameworks: An in vitro study[J]. CLINICAL ORAL IMPLANTS RESEARCH,2022.
APA
Pan, Yu,Tsoi, James Kit Hon,Lam, Walter Y. H.,Zhao, Ke,&Pow, Edmond H. N..(2022).The cumulative effect of error in the digital workflow for complete-arch implant-supported frameworks: An in vitro study.CLINICAL ORAL IMPLANTS RESEARCH.
MLA
Pan, Yu,et al."The cumulative effect of error in the digital workflow for complete-arch implant-supported frameworks: An in vitro study".CLINICAL ORAL IMPLANTS RESEARCH (2022).
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