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Open AccessArticle
Comparative Evaluation of Mechanical Properties and Color Stability of Dental Resin Composites for Chairside Provisional Restorations
by
Haikun Yu
Haikun Yu 1,
Jiaqi Yao
Jiaqi Yao 2,
Zhili Du
Zhili Du 1,
Jingmei Guo
Jingmei Guo 1 and
Wenlong Lei
Wenlong Lei 1,*
1
State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan 430072, China
2
Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, Wuhan 430072, China
*
Author to whom correspondence should be addressed.
Polymers 2024, 16(14), 2089; https://doi.org/10.3390/polym16142089 (registering DOI)
Submission received: 16 June 2024
/
Revised: 17 July 2024
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Accepted: 19 July 2024
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Published: 22 July 2024
Abstract
Resin composites have become the preferred choice for chairside provisional dental restorations. However, these materials may undergo discoloration, changes in surface roughness, and mechanical properties with aging in the oral cavity, compromising the aesthetics, functionality, and success of dental restorations. To investigate the color and mechanical stability of chairside provisional composite resins, this study evaluated the optical, surface, and mechanical properties of four temporary restoration resin materials before and after aging, stimulated by thermal cycling in double-distilled water. Measurements, including CIE LAB color analysis, three-point bending test, nanoindentation, scanning electron microscopy (SEM), and atomic force microscopy (AFM), were conducted (n = 15). Results showed significant differences among the materials in terms of optical, surface, and mechanical properties. Revotek LC (urethane dimethacrylate) demonstrated excellent color stability (ΔE00 = 0.53-Black/0.32-White), while Artificial Teeth Resin (polymethyl methacrylate) exhibited increased mechanical strength with aging (p < 0.05, FS = 68.40 MPa-non aging/87.21 MPa-aging). Structur 2 SC (Bis-acrylic) and Luxatemp automix plus (methyl methacrylate bis-acrylate) demonstrated moderate stability in optical and mechanical properties (Structur 2 SC: ΔE00 =1.97-Black/1.38-White FS = 63.20 MPa-non aging/50.07 MPa-aging) (Luxatemp automix plus: ΔE00 =2.49-Black/1.77-White FS = 87.72 MPa-non aging/83.93 MPa-aging). These results provide important practical guidance for clinical practitioners, as well as significant theoretical and experimental bases for the selection of restorative composite resins.
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MDPI and ACS Style
Yu, H.; Yao, J.; Du, Z.; Guo, J.; Lei, W.
Comparative Evaluation of Mechanical Properties and Color Stability of Dental Resin Composites for Chairside Provisional Restorations. Polymers 2024, 16, 2089.
https://doi.org/10.3390/polym16142089
AMA Style
Yu H, Yao J, Du Z, Guo J, Lei W.
Comparative Evaluation of Mechanical Properties and Color Stability of Dental Resin Composites for Chairside Provisional Restorations. Polymers. 2024; 16(14):2089.
https://doi.org/10.3390/polym16142089
Chicago/Turabian Style
Yu, Haikun, Jiaqi Yao, Zhili Du, Jingmei Guo, and Wenlong Lei.
2024. "Comparative Evaluation of Mechanical Properties and Color Stability of Dental Resin Composites for Chairside Provisional Restorations" Polymers 16, no. 14: 2089.
https://doi.org/10.3390/polym16142089
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