Adhesive bonding of dental luting cements; influence of surface treatment
DOI:
https://doi.org/10.3109/00016357809029076Keywords:
Dental materials, dentin, acid etch, scanning electron microscopyAbstract
Øilo, G. 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/m3. 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.
Acta Odontologica Scandinavica publishes original research papers as well as critical reviews relevant to the diagnosis, epidemiology, health service, prevention, aetiology, pathogenesis, pathology, physiology, microbiology, development and treatment of diseases affecting tissues of the oral cavity and associated structures including papers on cause and effect or explanatory/associative relationships for experimental or observational studies.
