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Year : 2012  |  Volume : 1  |  Issue : 3  |  Page : 178-182

The effect of pre-heating silorane and methacrylate-based composites on microleakage of Class V restorations

1 Department of Restorative Dentistry and Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
2 Department of Orthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey

Correspondence Address:
Sezer Demirbuga
Department of Restorative Dentistry and Endodontics, Faculty of Dentistry, Erciyes University, 38039, Kayseri
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-9626.105383

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Objective: This study compared the effects of 4 different temperatures (4°C, 25°C, 37°C, 60°C) on the microleakage of silorane and methacrylate-based composites in Class V cavities. Materials and Methods: Standard Class V cavities were prepared at the buccal and lingual surfaces of human molars. The specimens were randomly divided into 2 groups according to the composite resin used (Group I: Filtek Silorane Adhesive System and Filtek Silorane composite; Group II: Clearfil SE Bond and Aelite LS Posterior composite) and into 4 subgroups according to temperature treatment (Group A: Refrigeration at 4°C; Group B (control): Storage at room temperature (25°C); Group C: Heated to 37°C and Group D: Heated to 60°C using Calset). Specimens were dyed with 0.5% basic fuchsin, sectioned, and evaluated at 25x magnification. Statistical analysis was performed using Mann-Whitney U and Kruskal-Wallis tests at P<0.05. Results: Filtek Silorane and Aelite LS Posterior showed similar microleakage values (P>0.05). Differences in temperature did not significantly affect microleakage values for Filtek Silorane (P>0.05); however, microleakage values of Aelite LS Posterior composite varied according to temperature treatment, with heating resulted in significantly less microleakage than cooling (between Groups IID and IIA and Groups IIC and IIA) (P<0.05). Conclusion: Pre-heating was shown to reduce microleakage values of Aelite LS Posterior composite, but did not significantly alter the microleakage values of Filtek Silorane composite.

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