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The demand for metal dental implants triggers search for innovative biomaterials, which are most importantly, characterised by
good biotolerance, are corrosion resistant, possess high mechanical resistance and cosmetic durability. Up until today, it has been
impossible to achieve a satisfactory level of high mechanical resistance of titanium prosthetic apparatus with permanent dental
ceramic veneers and, for this reason, research in this respect still continues. The purpose of the research was to shape the surface
layer of titanium biomaterials by creating a multilayer system comprising an inner gold layer and an outer dental porcelain layer so
as to achieve a permanent bond of metal-ceramic. Commercially pure titanium samples (ASTM grade 2) subjected to conventional
sandblasting (with 110 μm Al2O3 particles) uncoated and coated with gold, were examined. The metal–ceramic bond strength was
investigated according to ISO 9693 standards using the three-point flexure bond test. An improvement in the adhesion of dental
porcelain to titanium was obtained by coating the metal substrate with gold, which is of clinical importance.
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