SUMMARYAdhesive bonding of a mica‐based castable ceramic material (Olympus Castable Ceramics, OCC) was evaluatedin vitrowith the use of a silane primer in conjunction with an adhesive luting material. The primer contained a silane coupler and 4‐methacryloxyethyl trimellitate anhydride (4‐META), while the methyl methacrylate (MMA)‐based luting agent was initiated with a tri‐n‐butylborane derivative (TBB) and contained 4‐META (4‐META/MMA‐TBB resin). Ceramic specimens were sanded with No. 600 silicon carbide paper followed by blasting with alumina and/or etching with ammonium bifluoride. The specimens were bonded with various combinations and shear bond strengths were determined. Both priming and alumina blasting enhanced the bond between 4‐META resin and OCC. Although etching with ammonium bifluoride roughened the ceramic surface, this procedure did not improve the bond strength. Electron probe microanalysis of the ceramic surface revealed a decrease in silicon and aluminium elements after etching with
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