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A Comparison of Accuracy of Different Dental Restorative Materials between Intraoral Scanning and Conventional Impression-Taking: An In Vitro Study by Jung-Hwa Lim; Utkarsh Mangal; Na-Eun Nam; Sung-Hwan Choi; June-Sung Shim; Jong-Eun Kim is a Engineering article available to read on EtoBox.
What is A Comparison of Accuracy of Different Dental Restorative Materials between Intraoral Scanning and Conventional Impression-Taking: An In Vitro Study about?
The properties of underlying substrates influence the quality of an intraoral scan, but few studies have compared the outcomes using common restorative materials. In this study, we aimed to compare the accuracy of digital and conventional impressions recorded for four different dental materials as the substrates. Experimental crowns were produced with a metallic surface (gold or cobalt-chromium alloy (Co-Cr)) or without a metallic surface (zirconia or PMMA (polymethyl methacrylate)). A conventional impression was made in the conventional group (CON group), and gypsum models were subsequently scanned with a tabletop scanner. An intraoral scanner was used to scan the crowns either after applying a powder spray to reduce the surface reflectivity (IOS-P group) or without the powder spray (IOS group). The scans were assessed in three dimensions for precision and trueness. The accuracy did not differ between the CON and IOS groups for the non-metallic crowns. However, it was statistically different for the Co-Cr metallic crown, reducing trueness observed between groups as CON > IOS > IOS-P. The study evidences the differences in outer surface accuracy observed with a change in the substr
Who reads A Comparison of Accuracy of Different Dental Restorative Materials between Intraoral Scanning and Conventional Impression-Taking: An In Vitro Study?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Jung-Hwa Lim; Utkarsh Mangal; Na-Eun Nam; Sung-Hwan Choi; June-Sung Shim; Jong-Eun Kim
- Publisher
- MDPI AG
- Published
- 2021
- Language
- EN
- Field
- Engineering (Physical Sciences)