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  • Title: Microleakage at gingival margins of Class V composite resin restorations rebonded with various low-viscosity resin systems.
    Author: Tjan AH, Tan DE.
    Journal: Quintessence Int; 1991 Jul; 22(7):565-73. PubMed ID: 1882051.
    Abstract:
    The failure of a composite resin restoration to seal at its interface with unetched tooth structures, resulting from polymerization shrinkage, creates an unwanted marginal microleakage. Rebonding with a low-viscosity resin system has been recommended to reseal the marginal gap and to reduce microleakage. Since no particular resin system is commercially available, any low-viscosity resin has been utilized for this purpose. However, findings of this study seem to indicate the importance of selecting the appropriate resin system to optimize the outcome of this rebonding procedure, emphasizing the lowest viscosity and good wettability of the system. With proper selection of the resin system, this rebonding procedure can significantly reduce the microleakage at gingival unetched margins of Class V composite restorations.
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