Quantitative evaluation of the degradation amount of the silane coupling layer of CAD/CAM resin composites by water absorption

Lee, Chunwoo; Yamaguchi, Satoshi; Imazato, Satoshi

Journal of Prosthodontic Research, 2023, 67(1), 55-61

アクセス数:64件（2025-04-22 11:01 集計）

固定URL: https://hdl.handle.net/11094/93096

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タイトル
Quantitative evaluation of the degradation amount of the silane coupling layer of CAD/CAM resin composites by water absorption
著者
著者名
Lee, Chunwoo
NRID
1000030397773 1000030397773
ORCID
0000-0002-4661-8821 0000-0002-4661-8821
researchmap permalink
YamaguchiS_30397773 YamaguchiS_30397773
Scopus Author ID
7403873463 7403873463
著者名
Yamaguchi, Satoshi
NRID
1000080243244 1000080243244
ORCID
0000-0003-3655-4809 0000-0003-3655-4809
researchmap permalink
read0014210 read0014210
Scopus Author ID
55994423600 55994423600
著者名
Imazato, Satoshi
キーワード等
Computer-aided design/computer-aided manufacturing resin composite block
Finite element analysis
Silane coupling
Water absorption
内容
Lee C., Yamaguchi S., Imazato S.. Quantitative evaluation of the degradation amount of the silane coupling layer of CAD/CAM resin composites by water absorption. Journal of Prosthodontic Research 67, 55 (2023); https://doi.org/10.2186/jpr.JPR_D_21_00236.
抄録
Purpose: Degradation of silane coupling layers by water ingress in computer-aided design/computer-aided manufacturing (CAD/CAM) of resin composites has been reported qualitatively. In this study, we quantitatively evaluated how water absorption of CAD/CAM resin composites affects the silane coupling layer by in vitro and in silico methods. Methods: A Katana Avencia block (KAB) and an experimental matrix block composed of only a matrix resin were used to evaluate the effect of water immersion for seven days on the elastic modulus. X-ray photoelectron spectroscopy (XPS) with fluorine-labeling of the KAB was performed to evaluate the atomic percentage of F1s, which represents the hydrolysis amount by water immersion. In silico analysis of the three-dimensional model of the KAB was performed to determine the coupling ratios before and after water immersion. Results: The elastic modulus of the KAB was 8.2 GPa before and 6.9 GPa after immersion in water. The atomic percentages of F1s in the after-and before-immersion groups were 14.31% and 11.52%, respectively, suggesting that hydrolysis of the silane coupling layer occurred during water immersion. From in silico analysis of the three-dimensional model of the KAB, the coupling ratio was predicted to be 78.2% before water immersion. After water immersion, the coupling ratio was predicted to be 68.4%. Conclusions: The in vitro and in silico approaches established in this study were able to predict the silane coupling ratios of CAD/CAM resin composites, and they showed that the silane coupling ratio decreased by water absorption.
出版者
Japan Prosthodontic Society
収録物名
Journal of Prosthodontic Research
巻(号)
67(1)
ページ
55-61
刊行年月
2023-01-01
言語
英語
ハンドルURL
https://hdl.handle.net/11094/93096
PISSN
18831958
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.2186/jpr.JPR_D_21_00236
アクセス権
open access
権利情報
© 2023 Japan Prosthodontic Society. All rights reserved.
This article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
出版タイプ
Version of Record
カテゴリ
学術雑誌論文 Journal Article