Effect of sandblasting and various metal primers on the shear bond strength of resin cement to Y-TZP ceramic

Abstract Objectives This study was designed to evaluate the effect of sandblasting and metal primers on the shear bond strength of three commercial resin cements to Yttria-Tetragonl Zirconia Polycrystal (Y-TZP) ceramics. Methods One hundred and twenty Y-TZP ceramic cylinders (Ø7 mm × 12 mm) were emb...

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Bibliographic Details
Published in:Dental materials 2010-07, Vol.26 (7), p.650-658
Main Authors: Yun, Jeong-yeon, Ha, Seung-ryong, Lee, Jai-bong, Kim, Sung-hun
Format: Article
Language:English
Subjects:
Advanced Basic Science
Analysis of Variance
Bonding strength
Cements
Ceramic cements
Ceramics
Dental Bonding
Dental Etching - methods
Dental Porcelain
Dental Stress Analysis
Dentistry
Metal primer
Methacrylates
Microscopy, Electron, Scanning
Polymers
Random Allocation
Resin Cements
Resins
Sandblasting
Shear
Shear bond strength
Shear Strength
Statistics, Nonparametric
Surface Properties
Thiones
Thiouracil - analogs & derivatives
Triazines
Y-TZP ceramic
Yttrium
Zirconia
Zirconium
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Summary:Abstract Objectives This study was designed to evaluate the effect of sandblasting and metal primers on the shear bond strength of three commercial resin cements to Yttria-Tetragonl Zirconia Polycrystal (Y-TZP) ceramics. Methods One hundred and twenty Y-TZP ceramic cylinders (Ø7 mm × 12 mm) were embedded in polytetrafluoroethylene (PTFE) molds using PMMA. The specimens were divided randomly into 12 groups ( n = 10), according to the surface treatments (control; sandblast-only; metal primer-only; sandblast + metal primer) and metal primer-resin cements (Alloy primer – Panavia F 2.0, V-primer – Superbond C&B, Metaltite – M bond) rendered. The mixed resin cements were placed onto the treated zirconia surfaces in cylindrical shape (Ø3 mm × 3 mm) using PTFE molds. All specimens were thermocycled (5 and 55 °C, 5000 cycles) and subjected to shear bond strength test by a universal testing machine with a crosshead speed of 0.5 mm/min. All data were statistically analyzed using two-way ANOVA and multiple comparison Scheffé test ( α = 0.05), and SEM images of the fractured areas were used to evaluate the fracture mode. Results In Panavia F 2.0, the bond strength of the specimens treated with sandblasting and metal primer (Alloy primer) was significantly higher than those of the other subgroups. In Superbond C&B and M bond, sandblasting significantly increased the shear bond strength, but the effect of metal primers (V-primer and Metaltite) was not significant and there was disordinal interaction. Significance Metal primers are not always effective for bonding between Y-TZP ceramics and resin cements. Even though a metal primer is not enough to be used alone, combined application with sandblasting seems to be an appropriate pretreatment for improving the bond strength of resin cement to Y-TZP ceramics, especially in Panavia F 2.0.
ISSN:0109-5641
1879-0097
DOI:10.1016/j.dental.2010.03.008