Title: A shear stress analysis of the bonding of porcelain veneers to enamel
Abstract: This study demonstrated the relative strengths of the composite resin bond to etched enamel and the composite resin bond to surface-treated porcelain with similar conditions. It also compared the strength of a combined porcelain/composite/enamel bond with the strengths of porcelain/composite resin and enamel/ composite resin bonds and evaluated the effectiveness of silane treatment of the etched porcelain. The influence of thermocycling was also investigated. There were 20 samples for each five categories: (1) composite resin/etched porcelain; (2) composite resin/etched and silane-treated porcelain; (3) composite resin/acidetched enamel; (4) etched porcelain/composite resin/acid-etched enamel; and (5) etched and silane-treated porcelain/composite resin/acid-etched enamel. Half in each category were subjected to thermocycling. Shear testing and microscopic examination of the fracture sites resulted in the following: (1) Shear testing a combined enamel/composite/porcelain bond resulted in significantly different values from testing individual enamel/composite resin and porcelain/composite resin bond strengths. (2) Silane treatment of the etched porcelain recorded a significantly greater shear strength to the merely etched samples. (3) Thermocycling did not significantly dilute the effects of silane treatment of the etched porcelain surface.
Publication Year: 1993
Publication Date: 1993-11-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 73
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