Effect of heat-curing cycle and gypsum contamination on the bond strengths of composite bonded to a silane-treated alloy.
Silane-coated alloy specimens bonded to composite resin were tested for shear bond strengths and compared with an identical specimen group exposed to gypsum invested heat-processing conditions. The results indicate that the bond of composite resin to silane-coated alloy is not impaired by investing, boil-out, cleaning, packing, and curing during the process of securing artificial teeth to a partial denture framework. In a second part of this study, the alloy specimens were silane-coated and exposed to the gypsum invested heat-processing procedure before the composite resin was bonded to them. In addition, the specimens were exposed to one of three different cleaning agents (ethyl acetate, ethyl alcohol, and soap and water). Results in the second part of the study indicate that ethyl acetate is an effective cleaning agent to use when a silane-coated alloy surface previously exposed to gypsum processing is to be bonded to composite resin.
Kolodney
H
H
Department of Restorative Dentistry, University of Mississippi, School of Dentistry, Jackson.
Puckett
A D
AD
Kistenmacher
B J
BJ
Weems
M D
MD
D000085:Acetates; D000704:Analysis of Variance; D002133:Calcium Sulfate / Q000737:chemistry*; D002858:Chromium Alloys; D003188:Composite Resins; D001840:Dental Bonding; D003734:Dental Casting Investment; D003832:Denture, Partial, Removable; D000431:Ethanol; D006358:Hot Temperature; D008422:Materials Testing; D012821:Silanes; D012915:Soaps; D013718:Tensile Strength
D000085:Acetates; D002858:Chromium Alloys; D003188:Composite Resins; D003734:Dental Casting Investment; D012821:Silanes; D012915:Soaps; D000431:Ethanol; C007650:ethyl acetate; D002133:Calcium Sulfate