[Optimizing the bond between metal and bonding agent in bonded restorations using a simplified silicoating procedure]

The tensile bond strengths of five different resinbonding-systems to a Co-Cr-alloy (Dentitan) are tested. The samples were stored in artificial saliva (37 degrees C) up to 150 days and thermocycled (5 degrees-55 degrees C, 18,750 cycles). In contrast to micromechanical bonding-systems, mechanical-chemical ones showed no significant changes in tensile bonding strength during this observation period. The tribochemical silicoating procedure (Rocatec) seems to be suitable for Co-Cr-alloys used in resin-bonded restorations.