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  • Title: Effect of self-adhesive resin cement and tribochemical treatment on bond strength to zirconia.
    Author: Lin J, Shinya A, Gomi H, Shinya A.
    Journal: Int J Oral Sci; 2010 Mar; 2(1):28-34. PubMed ID: 20690416.
    Abstract:
    AIM: To evaluate the interactive effects of different self-adhesive resin cements and tribochemical treatment on bond strength to zirconia. METHODOLOGY: The following self-adhesive resin cements for bonding two zirconia blocks were evaluated: Maxcem (MA), Smartcem (SM), Rely X Unicem Aplicap (UN), Breeze (BR), Biscem (BI), Set (SE), and Clearfil SA luting (CL). The specimens were grouped according to conditioning as follows: Group 1, polishing with 600 grit polishing paper; Group 2, silica coating with 110 microm Al2O3 particles which modified with silica; and, Group 3, tribochemical treatment--silica coating + silanization. Specimens were stored in distilled water at 37 degrees C for 24 hours before testing shear bond strength. RESULTS: Silica coating and tribochemical treatment significantly increased the bond strength of the MA, UN, BR, BI, SE and CL to zirconia compared to #600 polishing. For both #600 polished and silica coating treatments, MDP-containing self-adhesive resin cement CL had the highest bond strengths to zirconia. CONCLUSION: Applying silica coating and tribochemical treatment improved the bond strength of self-adhesive resin cement to zirconia, especially for CL.
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