The Effect of Addition of White Portland Cement on the Physical Properties of MTA Fillapex Farag Rehab Ali1, Negm Maged M.2, Ali Magdy M.3, Ahmed Lamia I.4 1Assistant Lecturer, Faculty of Oral and Dental Medicine, MUST University 2Professor of Endodontics, Faculty of Oral and Dental Medicine, Cairo University 3Professor and head of Department of Endodontics, Faculty of Dentistry, Minia University 4Associate professor of Endodontics, Faculty of Dentistry, Fayoum University Online published on 13 November, 2019. Abstract Aim To evaluate the effect of adding white Portland cement, in the ratio of 25% by weight, on the physical properties of MTA Fillapex. Methodology White Portland cement (WPC) powder was incorporated into the paste of mixed MTA Fillapex in the ratio of 25% by weight. Different properties including powder-paste ratio, strength properties, setting time, film thickness, water solubility, and push out bond strength were studied in comparison to MTA Fillapex. Results The experimental material showed higher setting time, higher film thickness, higher solubility, higher diametral tensile strength, and higher compressive strength, though the last one was not statistically significant. On the other hand, the push out bond strength of the experimental material was significantly lower. Conclusions Addition of Portland cement to MTA Fillapex increases its setting time, film thickness, solubility, diametral tensile strength and compressive strength. However, its push-out bond strength decreased. Top Keywords MTA Fillapex, Strength properties, Portland cement, Push-out bond strength. Top |