Microstructural, chemical and mechanical assessment of two feldspathic porcelain materials

ABSTRACT

Objectives: To evaluate two different feldspathic porcelain materials, namely Vita Dur Alpha and VitaVM7; firstly by examination of the surface morphology of unetched and etched specimens using scanning electron microscopy [SEM], secondly by studying their chemical compositional element concentration using energy dispersive X-ray [EDX] analysis, thirdly by studying their surface hardness property and finally by determining their shear bond strength to dentine after two hydrofluoric acid etching durations [5 and10 seconds]