Adhesive bonding of dental luting cements; influence of surface treatment.
Tensile bond strength of four different luting cements to smooth dentin surfaces was measured. A chisel edged, stainless steel ring was cemented to the butt end of a dentin cylinder. The dentin was polished to a plane and smooth surface before cementation. The cements were also applied to dentin surfaces that were treated with a pumice slurry, etched with different acid solutions, or covered with different liners. The results showed that the polycarboxylate cement had a tensile bond strength to smooth, untreated dentin of approximately 4 MN/m2. The zinc phosphate and EBA cements had a bond strength of 0,6 MN/m2 and the composite resin cement had no measurable bond to untreated dentin. All dentin treatments showed in general a decreasing effect on the bond strength of zinc phosphate, polycarboxylate and EBA cements, whereas that of composite resin cement showed a slight increase.
D000268:Adhesiveness; D001840:Dental Bonding; D003738:Dental Cements / Q000592:standards*; D003804:Dentin / Q000648:ultrastructure; D006801:Humans; D011076:Polycarboxylate Cement / Q000592:standards; D013718:Tensile Strength; D015035:Zinc Oxide-Eugenol Cement / Q000592:standards; D015036:Zinc Phosphate Cement / Q000592:standards
D003738:Dental Cements; D011076:Polycarboxylate Cement; D015035:Zinc Oxide-Eugenol Cement; D015036:Zinc Phosphate Cement