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Bonding of resin cements to an aluminous ceramic: a new surface treatment
1Groupe de Recherche Biomatériaux, Faculté de Chirurgie Dentaire, Université Paris V, France.
Objectives:
The purpose of the work reported here was to develop a surface treatment of an alumina-based ceramic (In Ceram) that would make reliable bonding to a resin-based luting agent possible.
Methods:
The surface treatment studied was the application of a suspension of a fine-grained, refractory powder, which after drying was sintered to the surface at 960 degrees C. The adherence potential of the surface was determined by measurement of bond energy.
Results:
It was found that the surface treatment, in conjunction with a heat-treated, silane coupling agent, resulted in mean bond energies of 47 (+/- 19), 56 (+/- 22), and 525 (+/- 116) J/m2 for the three resin cements studied.
Significance:
It was concluded that the new surface treatment makes reliable bonding possible, which may allow new indications for this material.