Özet:

Adhesive bridge or resin-bonded fixed denture has been known for more than 40 years. Bonding resistance of this type of denture relies heavily on the adhesion of the resin cement to both metal surface and tooth. Adhesive bridge consists of a pontic anchored to the supporting tooth using a metallic metal wing retainer. Disadvantages of adhesive bridge is lack of success rate of adhesive bridge. Mainfactor failure of adhesive bridge is debonding or denture removal due tomastication force. Factors that can affect bond strength of adhesive bridge are surface treatment of the metal wing retainer and type of resin cement used. This study aimed to determine the effect of surface treatment and resin cement on the shear bond strength of adhesive bridge. This type of research is an experimental laboratory. Thirty samples were made of cylindrical metal samples with a diameter of 5mm and a height of 3mm at UJI dental laboratory Faculty of Dentistry University Sumatera Utara. This metal sample further categorized according to three surface treatment groups used which is sandblast, metal primer, andcombination of sandblasting with metal primer. Subsequently, each group was further divided into two groups based on the resin cement used, particularly total-etch resin cement and self-adhesive resin cement. Value measurement of shear bond strength was performed using a universal testing machine. Differences in the effect of surface treatment and resin cement were analyzed using two-way ANOVA test and the T-test. Results show the effect of surface treatment and resin cement on the shear bond strength. Highest average value of shear bond strength was in combination of surface treatment sandblasting and metal primergroup with self-adhesive resin cement (37.56 + 3.36 MPa). Usage of combination of surface treatment sandblasting and metal primer with self-adhesive resin cement is recommended as an option for cementation procedures to achieve long-term success in using adhesive bridge

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