Effects of primer containing silane and thiophosphate monomers on bonding resin to a leucite-reinforced ceramic

• Published in: Journal of dentistry Vol. 40; no. 5; pp. 353 - 358
• Main Authors: Taira, Yohsuke, Sakai, Miyuki, Sawase, Takashi
• Format: Journal Article
• Language: English; Persian
• Published: England Elsevier Ltd 01.05.2012; Elsevier Limited
• Subjects: Acids; Adhesive bonding; Aluminum Silicates - chemistry; Bond strength; Bonding strength; Carbon Compounds, Inorganic - chemistry; Ceramic bonding; Ceramics; Composite Resins - chemistry; Dental Bonding; Dental Etching - methods; Dental Materials - chemistry; Dental Porcelain - chemistry; Dental Stress Analysis - instrumentation; Dentistry; Humans; Hypotheses; Materials Testing; Methacrylates - chemistry; Methylmethacrylates - chemistry; Monomers; Phosphates - chemistry; Polymers; Polymethyl methacrylates; Resin; Resin Cements - chemistry; Resins; Self-Curing of Dental Resins; Shear Strength; Silanes; Silanes - chemistry; Silicon Compounds - chemistry; Stress, Mechanical; Studies; Surface modification; Surface Properties; Time Factors; Water - chemistry; Japan; Germany; Surface modification; Adhesive bonding; Ceramics; Resin
• ISSN: 0300-5712; 1879-176X
• DOI: 10.1016/j.jdent.2011.12.003

Abstract Objectives Silane primers are commonly used for bonding between resin-based luting agents and ceramic restorations. The purpose of the present study was to evaluate the effects of nine silane primers on the bond strength of resin to a leucite-reinforced ceramic. Methods The commercially available dental primers used were five silane primers (GC Ceramic Primer, GP; Clearfil Ceramic Primer, CP; Tokuso Ceramic Primer, TP; Porcelain Liner M, PM; and Monobond Plus, MB). Four experimental primers (MDS, MTS, MDS/MPII, and MTS/MPII) and two control primers (MMA and MMA/MPII) were also prepared. The ceramic specimen was ground with silicon carbide paper, primed, and then bonded to a resin composite disc using a dual-curing luting agent. After a 24-h immersion in water, the shear bond strengths were determined. Results Shear bond testing revealed that the bond strength was significantly improved with the use of a MTS/MPII primer when compared to MDS, MTS, MMA, MDS/MPII and MMA/MPII. Although no significant differences were detected between GP, CP, PM, and MB, the primers CP, TP, PM, and MTS/MPII exhibited the highest bond strengths, followed by GP and MB, whilst the no-primer control resulted in the lowest values. Conclusion The maximum bond strengths were obtained with CP, TP, PM, and MTS/MPII. It was suggested that the thiophosphate monomer accelerated the role of the silane monomer. When selecting a primer to bond ceramic restorations, clinicians should be aware that not only the silane monomer but also additional components of the primer considerably affect the bond strength.