Influência da inserção de fibras de Al2O3/GdAlO3 na resistência mecânica de monolayers e bilayers de cerâmicas odontológicas

Abstract

ABSTRACTinterface and fractographyc analysis were carried out after scanning electronic microscopy (SEM) of bars. X-ray difratometry and dilatometry were also performed.Vm9 porcelain showed incompatibility with the fibers, probably due to differences between the coefficients of thermal expansion of fibers and porcelain. VM7 monolayers with the addition of 17% of fibers in volume showed significantly higher resistance in relation to control. It was concluded that the inclusion of ceramic fibers of Al 2 O 3 /GdAlO 3 to veneer porcelain improves its flexural strength.