J Korean Acad Prosthodont.  2015 Oct;53(4):295-300. 10.4047/jkap.2015.53.4.295.

Shear bond strength of Universal bonding systems to Ni-Cr alloy

• Song SY
• Son BW
• Kim JY
• Shin SW
• Lee JY

• KMID: 2118800
• DOI: http://doi.org/10.4047/jkap.2015.53.4.295

Abstract

PURPOSE
The aim of this study was to evaluate the shear bond strength between Ni-Cr alloy and composite resin using universal adhesive systems coMPared to conventional method using metal primers.
MATERIALS AND METHODS
For this study, a total of 120 cast commercial Ni-Cr alloy (Vera Bond 2V) disks were embedded in acrylic resin, and their surfaces were smoothed with silicon carbide papers and airborne-particle abrasion. Specimens of each metal were divided into 6 groups based on the combination of metal primers (Metal primer II, Alloy primer, Metal & Zirconia primer, MKZ primer) and universal adhesive systems (Single Bond Universal, All Bond Universal). All specimens were stored in distilled water at 37degrees C for 24 hours. Shear bond strength testing was performed with a universal testing machine at a cross head speed of 1 m/min. Data (MPa) were analyzed using one-way ANOVA and the post hoc Tukey's multiple comparison test (alpha=.05).
RESULTS
There were significant differences between Single Bond Universal, All Bond Universal, Metal Primer II and Alloy Primer, MKZ Primer, Metal & Zirconia Primer (P<.001).
CONCLUSION
Universal Adhesive system groups indicated high shear bond strength value bonded to Ni-Cr alloy than that of conventional system groups using primers except Metal Primer II. Within the limitations of this study, improvement of universal adhesive systems which can be applied to all types of restorations is recommended especially non-precious metal alloy. More research is needed to evaluate the effect of silane inclusion or exclusion in universal adhesive systems.

Keyword

Universal Adhesive system; Silane; 10-MDP; MEPS; Shear bond strength; Phosphate monomer

MeSH Terms

Adhesives
Alloys*
Head
Water
Adhesives
Alloys
Water

Figure

• 

  Fig. 1. Cross-sectional illustration of shear bond strength test set up. (a) Mounting jig, (b) Pink acrylic resin, (c) Ni-Cr disk, (d) Composite resin, (e) Instron rod.

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