Background: To evaluate marginal microleakage of two composite resins - a methacrylate- and a silorane-based submitted to different polymerization techniques and thermocycling.
Material And Methods: Ninety-six class V cavities were prepared in sound human molars and restored under different polymerization and thermocycling regimens. The adhesive systems employed were Adper Scotchbond Multipurpose and Filtek P-90 for cavities restored with Z250 and P-90. The specimens were restored with Z250 or P-90, and divided into 3 subgroups with different polymerization techniques. The data were analyzed by Three way Analysis of Variance Test (<0.05).
Results: Micro infiltration lower scores were found in groups which were used silorane-based resin with significant statistical difference compared with the specimens restored with methacrylate-based resin, independently of polymerization type used and thermocycling (>0.001).
Conclusions: Silorane-based composite resins present lower marginal microleakage values when compared to methacrylate-based composites resins. Composite resin, microleakage, polymerization.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5347290 | PMC |
| http://dx.doi.org/10.4317/jced.53481 | DOI Listing |
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