WEAR PROPERTIES OF NANOFILLED AND MICROFILLED COMPOSITE RESTORARIVE MATERIALS

Authors : Efe Çetin YILMAZ, Recep SADELER

Pages : 16-22

View : 13 | Download : 8

Publication Date : 2016-01-01

Article Type : Research Paper

Abstract :The purpose of this in vitro study was to compare the two-body wear resistance of nanofilled insert ignore into journalissuearticles values(3M ESPE Filtek Silorane ); and microfilled insert ignore into journalissuearticles values(3M ESPE Filtek Z250); composite restorative materials. Eight standardized disc shape specimens insert ignore into journalissuearticles values(6mm diameter X 8mm height); were prepared from two composite materials. Specimens were subjected to chewing simulation using a chewing simulator insert ignore into journalissuearticles values(F=49N insert ignore into journalissuearticles values(vertical 6 mm, horizontal 2 mm); 2,4 X 105 cycles and frequency 1,6 Hz); and simultaneous thermal cycling insert ignore into journalissuearticles values(3000 cycles, 5°C/55°C, 1min/cycle);. AL2O3 balls were used as antagonists for every experiment chewing cycle. Mean volume loss values were determined using 3D laser scanning device. Mean values and standard deviations were calculated and statistical analysis was performed using one-way Anova and Tukey’s test insert ignore into journalissuearticles values(α=,05);. Vicker hardness values for Filtek Z250 insert ignore into journalissuearticles values(about 69HV); and for Filtek Silorane insert ignore into journalissuearticles values(about 45HV); were measured. Mean volume loss of Filtek Z250 insert ignore into journalissuearticles values(3,8µm3 p=.021); is measured to be lower than Filtek Silorane insert ignore into journalissuearticles values(5,9µm3 p=.017);. In this study, suggested the excellent two body wear behaviour of the microfilled Filtek Z250. However, this study isn’t correlations linear between filler volume values and two body wear resistance
Keywords : Two body Wear, Composite Restorative Materials, Chewing Simulation, Thermal Cycling