Three-dimensional trueness analysis of ceramic crowns fabricated using a chairside computer-aided design/manufacturing system: An in vitro study
- Authors
- Kang, Seen-Young; Park, Jung-Hyun; Kim, Ji-Hwan; Kim, Woong-Chul
- Issue Date
- 4월-2020
- Publisher
- ELSEVIER IRELAND LTD
- Keywords
- Chairside CAD/CAM; Ceramic; Superimposition; Three-dimensional analysis; Trueness
- Citation
- JOURNAL OF PROSTHODONTIC RESEARCH, v.64, no.2, pp.152 - 158
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF PROSTHODONTIC RESEARCH
- Volume
- 64
- Number
- 2
- Start Page
- 152
- End Page
- 158
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/56718
- DOI
- 10.1016/j.jpor.2019.06.004
- ISSN
- 1883-1958
- Abstract
- Purpose: This study analyzed the trueness of polymer-infiltrated ceramic and glass ceramic crowns manufactured using the chairside computer-aided design/manufacturing (CAD/CAM) system. Methods: The master model designs crowns using a CAD program after acquiring a digital impression with an intraoral scanner. Vita Enamic (VE), Vita Suprinity (VS), and IPS e.max CAD (IPS) were used to manufacture 10 crowns each (total: 30 crowns), using the chairside CAD/CAM system (inLab MC XL). Trueness was evaluated by superimposing the CAD data on the scan data using a three-dimensional program. The Kruskal-Wallis H test, a nonparametric test, and the Mann-Whitney U test were performed by applying the significance level (0.05/3=0.016), which was adjusted by post-analysis Bonferroni testing. Results: There was a significant difference in the trueness between the samples (p < 0.05). However, there was no statistically significant difference in the outer surface trueness between the samples (p> 0.05). Conclusions: These findings show that the milling accuracy of VE is better than that of VS and IPS. (C) 2019 Japan Prosthodontic Society. Published by Elsevier Ltd. All rights reserved.
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