Effect of Accelerated Aging on Color Change of Direct and Indirect Fiber-Reinforced Composite Restorations
Objectives: The aim of this study was to assess the effect of artificial accelerated aging (AAA) on color change of direct and indirect fiber-reinforced composite (FRC) restorations. Materials and Methods: Direct (Z250) and indirect (Gradia) composite resins were reinforced with glass (GF) and polye...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2016-12-01
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| Series: | Frontiers in Dentistry |
| Subjects: | |
| Online Access: | https://jdt.tums.ac.ir/index.php/jdt/article/view/808 |
| _version_ | 1818750259773308928 |
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| author | Masomeh Hasani Tabatabaei Farnaz Farahat Elham Ahmadi Zahra Hassani |
| author_facet | Masomeh Hasani Tabatabaei Farnaz Farahat Elham Ahmadi Zahra Hassani |
| author_sort | Masomeh Hasani Tabatabaei |
| collection | DOAJ |
| description | Objectives: The aim of this study was to assess the effect of artificial accelerated aging (AAA) on color change of direct and indirect fiber-reinforced composite (FRC) restorations.
Materials and Methods: Direct (Z250) and indirect (Gradia) composite resins were reinforced with glass (GF) and polyethylene fibers (PF) based on the manufacturers’ instructions. Forty samples were fabricated and divided into eight groups (n=5). Four groups served as experimental groups and the remaining four served as controls. Color change (∆E) and color parameters (∆L*, ∆a*, ∆b*) were read at baseline and after AAA based on the CIELAB system. Three-way ANOVA and Tukey’s test were used for statistical analysis.
Results: Significant differences were found in ΔE, ΔL*, Δa* and Δb* among the groups after AAA (P<0.05). Most of the studied samples demonstrated an increase in lightness and a red-yellow shift after AAA.
Conclusions: The obtained ∆E values were unacceptable after AAA (∆E≥ 3.3). All indirect samples showed a green-blue shift with a reduction in lightness except for Gradia/PF+ NuliteF. |
| first_indexed | 2024-12-18T04:16:50Z |
| format | Article |
| id | doaj.art-636ce3d76c52440e9e66e9950f02c2b4 |
| institution | Directory Open Access Journal |
| issn | 2676-296X |
| language | English |
| last_indexed | 2024-12-18T04:16:50Z |
| publishDate | 2016-12-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Frontiers in Dentistry |
| spelling | doaj.art-636ce3d76c52440e9e66e9950f02c2b42022-12-21T21:21:20ZengTehran University of Medical SciencesFrontiers in Dentistry2676-296X2016-12-01133863Effect of Accelerated Aging on Color Change of Direct and Indirect Fiber-Reinforced Composite RestorationsMasomeh Hasani Tabatabaei0Farnaz Farahat1Elham Ahmadi2Zahra Hassani3Associate Professor, Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Operative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, IranAssistant Professor, Department of operative dentistry, Shahid Sadoughi University of Medical Sciences, Yazd, IranAssistant Professor, Department of Operative Dentistry, Dental Research Center, Faculty of Dentistry, Tehran University of Medical Sciences, Kargar Ave, TehranDentist, Private PracticeObjectives: The aim of this study was to assess the effect of artificial accelerated aging (AAA) on color change of direct and indirect fiber-reinforced composite (FRC) restorations. Materials and Methods: Direct (Z250) and indirect (Gradia) composite resins were reinforced with glass (GF) and polyethylene fibers (PF) based on the manufacturers’ instructions. Forty samples were fabricated and divided into eight groups (n=5). Four groups served as experimental groups and the remaining four served as controls. Color change (∆E) and color parameters (∆L*, ∆a*, ∆b*) were read at baseline and after AAA based on the CIELAB system. Three-way ANOVA and Tukey’s test were used for statistical analysis. Results: Significant differences were found in ΔE, ΔL*, Δa* and Δb* among the groups after AAA (P<0.05). Most of the studied samples demonstrated an increase in lightness and a red-yellow shift after AAA. Conclusions: The obtained ∆E values were unacceptable after AAA (∆E≥ 3.3). All indirect samples showed a green-blue shift with a reduction in lightness except for Gradia/PF+ NuliteF.https://jdt.tums.ac.ir/index.php/jdt/article/view/808Fiber-reinforced Composite ResinsAccelerated agingcolor |
| spellingShingle | Masomeh Hasani Tabatabaei Farnaz Farahat Elham Ahmadi Zahra Hassani Effect of Accelerated Aging on Color Change of Direct and Indirect Fiber-Reinforced Composite Restorations Frontiers in Dentistry Fiber-reinforced Composite Resins Accelerated aging color |
| title | Effect of Accelerated Aging on Color Change of Direct and Indirect Fiber-Reinforced Composite Restorations |
| title_full | Effect of Accelerated Aging on Color Change of Direct and Indirect Fiber-Reinforced Composite Restorations |
| title_fullStr | Effect of Accelerated Aging on Color Change of Direct and Indirect Fiber-Reinforced Composite Restorations |
| title_full_unstemmed | Effect of Accelerated Aging on Color Change of Direct and Indirect Fiber-Reinforced Composite Restorations |
| title_short | Effect of Accelerated Aging on Color Change of Direct and Indirect Fiber-Reinforced Composite Restorations |
| title_sort | effect of accelerated aging on color change of direct and indirect fiber reinforced composite restorations |
| topic | Fiber-reinforced Composite Resins Accelerated aging color |
| url | https://jdt.tums.ac.ir/index.php/jdt/article/view/808 |
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