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Microstructural characterization and comparative evaluation of physical, mechanical and biological properties of three ceramics for metal–ceramic restorations
Dental Materials, 07/28/08

Kontonasaki E et al. - Results showed a remarkable variation among the three ceramic compositions of leucite content in the starting unheated ceramic powders ranging between 14 and 32 wt.% and in the respective sintered powders ranging between 15 and 41 wt.% The low fusing glass–ceramic and the high fusing leucite-based ceramic presented significantly higher fracture toughness and microhardness and lower modulus of elasticity compared to the low fusing feldspathic ceramic. The three ceramics were almost equivalent concerning their in vitro biological behavior.

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