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Analysis of microleakage and marginal gap presented by new polymeric systems in class V restorations: An in vitro
Jefferson Ricardo Pereira1, Hugo Alberto Vidotti2, Lindomar Corrêa Júnior3
1Department of Health Sciences, University of Southern Santa Catarina, Tubarão, Brazil.
Objective:
Evaluating the contraction of polymerization effect of silorane-based composite on dental interface in enamel.
Materials And Methods:
Eighty class V cavities were confectioned in forty extracted molar teeth and restored with different combinations of resinous-based and bond system. They were divided into the following groups: (G1) three-step etch-and-rinse adhesive system and methacrylate-based resin, (G2) two-step etch-and-rinse adhesive system and methacrylate-based resin, (G3) Filtek P-90 self-conditioning adhesive system and methacrylate-based resin, (G4) Adper SE Plus self-conditioning adhesive system and methacrylate-based resin, (G5) three-step etch-and-rinse adhesive system and silorane-based resin, (G6) two-step etch-and-rinse adhesive system and silorane-based resin, (G7) Filtek P-90 self-conditioning adhesive system and silorane-based resin, (G8) Adper SE Plus self-conditioning adhesive system and silorane-based resin.
Results:
Group 7 showed lower marginal leakage when compared with all other groups (p = 0.001).
Conclusions:
The results allows suggesting that silorane-based resinous system is adequate to promote more satisfactory marginal sealing than any other combination, since the system is combined with its own bond system.
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