Tensile bond strength of gold and porcelain inlays to extracted teeth using three cements.
This in vitro study compared the tensile bond strength of gold and porcelain inlays to extracted molars in standardized cavities. Three cements were used: zinc phosphate, glass-ionomer, and a resin composite cement. The gold inlays were cemented using zinc phosphate or glass-ionomer cement, and the porcelain inlays were luted using resin composite or glass-ionomer cement. Surface treatments included, for gold inlays, either no treatment (zinc phosphate cement) or airborne particle abraded and tinplated (glass-ionomer cement); and for porcelain inlays, either no treatment (glass-ionomer cement) or etched and silane-treated (resin composite cement). Statistical analysis was performed using the Weibull distribution. Results showed no significant differences between gold inlays cemented using zinc phosphate or glass-ionomer cements and porcelain inlays luted using glass-ionomer cements. The bonded porcelain inlays (resin composite cement) showed tensile bond strengths two to three times higher than those obtained for cemented gold inlays.
Michelini
F S
FS
Department of Fixed Prosthodontics and Occlusion, School of Dentistry, University of Geneva, Switzerland.
Belser
U C
UC
Scherrer
S S
SS
De Rijk
W G
WG
D003188:Composite Resins; D001840:Dental Bonding; D003737:Dental Cavity Preparation; D003738:Dental Cements; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D005899:Glass Ionomer Cements; D006047:Gold Alloys; D006801:Humans; D007284:Inlays; D008422:Materials Testing; D008963:Molar; D011475:Prosthesis Failure; D013718:Tensile Strength; D015036:Zinc Phosphate Cement
D003188:Composite Resins; D003738:Dental Cements; D005899:Glass Ionomer Cements; D006047:Gold Alloys; D003776:Dental Porcelain; D015036:Zinc Phosphate Cement