An in-vitro investigation into the sealing ability of two fourth generation dentine bonding agents and two resin modified glass polyalkenoate restoratives.
To determine the in-vitro sealing ability of two resin modified glass polyalkenoate cements and two fourth generation dentine bonding systems, fifty mixed class V cavities were filled with each material and evaluated for leakage. At enamel margins, no significant differences in leakage extent was noted; however, at cemental margins the two resin modified glass polyalkenoates performed significantly better than the resin based systems. Crazing was frequently noted on enamel margins with both glass polyalkenoate materials. Surface application of unfilled glaze did not affect the leakage at either enamel or cemental margins for one of the polyalkenoate restorative materials.
Quinn
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Department of Restorative Dentistry and Periodontology, Dublin Dental School, Republic of Ireland.
D003188:Composite Resins; D003739:Dental Cementum / Q000648:ultrastructure; D003743:Dental Enamel / Q000648:ultrastructure; D003763:Dental Leakage / Q000517:prevention & control*; D018772:Dental Marginal Adaptation; D003804:Dentin / Q000648:ultrastructure; D017220:Dentin-Bonding Agents; D005069:Evaluation Studies as Topic; D005899:Glass Ionomer Cements; D006801:Humans; D008689:Methacrylates; D008855:Microscopy, Electron, Scanning; D019279:Resin Cements; D012117:Resins, Synthetic; D018709:Statistics, Nonparametric
C074864:All-Bond system; D003188:Composite Resins; D017220:Dentin-Bonding Agents; C079765:Fuji II LC cement; D005899:Glass Ionomer Cements; D008689:Methacrylates; D019279:Resin Cements; D012117:Resins, Synthetic; C084018:Scotchbond Multi-Purpose; C084550:Vitremer