Abstrait

Microstructure, surface properties and antimicrobial effectiveness of filtek and ceramic materials

Abu Bakr El-Bediwi, Reham Hamed Ebrahim, Afaf Sarhan Abdelrazek, Mutlu Ã?Â?Ã?Â?Ã?Â?Ã?Â?zcan

Microstructure, molecular structure, hardness, surface roughness and antimicrobial efficiency of filtek, porcelain and zirconiarestorative dentalmaterials have been evaluated. Specimens used in this study were dental porcelain (VitaVMK,Master,VITAZ ahnfabrik, Germany), zirconia (Ceramill zi, made in Austria) and Feltik 250 (3M ESPE, USA). The results show that, porcelain consists of a mixture of glassy matrix and crystalline phases imbedded it. Zirconia consists of ZrO2 with different plans, intensity, broadness and orientation. Filtek consists of glassy matrix with other accumulated particles (very small peaks) imbedded it. Zirconia is very lowsurface roughness with high Vickers hardness compared to porcelain dental material. Alsobacterial growth was detected around filtek, porcelain and zirconia