The formation of overlap technique of prefabricated leucite reinforced glass-ceramic inlays carried new positives, but also problem with extension of bonded surfaces between luting material and inlays. Shear bond strength of this adhesive bond up to 12 months and after thermo-cycling, and microleakage after 24 hours were tested. Two micro-filled composite luting cements (Panavia 21, All-Bond C&B) were used.

        Key words: glass-leucite ceramics – ceramics inserts – shear bond strength