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Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 99

Effect of aging on color stability of amine-free resin cement through the ceramic laminate veneer

1 Department of Restorative, Dental Branch, Islamic Azad University of Medical Sciences, Tehran, Iran
2 Department of Restorative Dentistry, Dental Research Centre, Dentistry Research Institute, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
3 Department of Restorative, Islamic Azad University of Medical Sciences, Tehran, Iran

Correspondence Address:
Dr. Niloufar Moosavi
Islamic Azad University of Medical Sciences, Tehran
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1735-3327.330880

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Background: This study aimed to assess the color change of two amine-free dual-cure resin cements following aging in comparison with a light-cure resin cement. Materials and Methods: This in vitro, experimental study evaluated 6 groups (n = 10), including three groups of cements bonded to feldspathic porcelain and three groups of resin cements alone. Panavia V5 (Kuraray) and G-CEM LinkForce (GC) dual-cure resin cements and Choice 2 (Bisco) light-cure resin cements were bonded to porcelain according to the manufacturers' instructions. The color parameters of the groups were measured before and after 5000 thermal cycles by spectrophotometry. Data were analyzed using two-way ANOVA and Tukey's post hoc test (α =0.05). Results: The color change (ΔE) of the cement groups alone was significantly greater than that of porcelain-bonded cements. The ΔE of G-CEM LinkForce cement group was significantly higher than that of Panavia V5 group (P = 0.020), and the ΔE of the latter group was significantly higher than that of Choice 2 cement group (P = 0.021). Conclusion: Considering the color change of cements evaluated in this study, Choice 2 and Panavia V5 cements bonded to porcelain showed acceptable color change, which indicates that they are suitable for cementation of esthetic dental restorations. Ceramic laminates have become an ideal esthetic treatment for anterior restorations. The resin cement discoloration can affect final appearance of these restorations. Besides that, exposed resin cement line can lead to the esthetic problem over time.

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