Effect of moist bonding on composite/enamel bond strength.
OBJECTIVE
To evaluate the effect of moist bonding on shear bond strength of resin-based composite to enamel using different adhesive systems.


METHODS
Six restorative systems were selected for this study: OptiBond FL/Prodigy, Solid Bond/Charisma F, Syntac Single Component/Tetric, Prime&Bond 2.1/Spectrum TPH, Single Bond/Z100, Etch&Prime 3.0/Degufill Mineral. Flat enamel surfaces were ground on the buccal and lingual aspects of 80 extracted human molars. OptiBond FL and Solid Bond were tested with and without primer application. Prior to application of the adhesives, the enamel was either carefully dried with compressed air (dry bonding) or blot dried with a cotton pellet (moist bonding). Shear bond strength was determined with a universal testing machine after 24-hour storage in 0.9% NaCl at 37 degrees C.


RESULTS
Moist bonding did not significantly affect shear bond strength to enamel of the adhesives tested except for Solid Bond without primer application. Primer contamination of the etched enamel did not significantly influence bond strength, neither in the dry bonding nor in the moist bonding group. Of all adhesives tested in both groups, the highest mean bond strength was observed with Prime&Bond 2.1 and the lowest with Etch&Prime 3.0.
Moll
Karlheinz
K
Department of Conservative Dentistry, Periodontology and Pedodontics, University of Ulm, Germany. karlheinz.moll@medizin.uni-ulm.de
Gärtner
Thomas
T
Haller
Bernd
B
D000096:Acetone / Q000737:chemistry; D000704:Analysis of Variance; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry; D003743:Dental Enamel / Q000648:ultrastructure*; D003799:Dental Stress Analysis / Q000295:instrumentation; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D011756:Diphosphates / Q000737:chemistry; D004852:Epoxy Compounds / Q000737:chemistry; D000431:Ethanol / Q000737:chemistry; D005459:Fluorides / Q000737:chemistry; D006801:Humans; D008689:Methacrylates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D011109:Polymethacrylic Acids / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D012822:Silicon Dioxide; D012965:Sodium Chloride; D013223:Statistics as Topic; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry*; D015040:Zirconium
C084111:Charisma composite resin; D003188:Composite Resins; C117615:Degufill mineral; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D011756:Diphosphates; D004852:Epoxy Compounds; C121187:Etch&Prime; D008689:Methacrylates; C092987:Optibond; D011109:Polymethacrylic Acids; C099128:Prodigy; D019279:Resin Cements; C407604:Solid Bond; C420128:Spectrum composite resin; C078484:Syntac dentine adhesive; C090969:Tetric; C083568:Z100 composite resin; C444444:prime and bond 2.1; C115612:single bond; D014867:Water; D000096:Acetone; D000431:Ethanol; D012965:Sodium Chloride; D017438:Bisphenol A-Glycidyl Methacrylate; D012822:Silicon Dioxide; D015040:Zirconium; D005459:Fluorides