دراسة مقارنة مخبرية بين الراتنج المركب النانومتري و الراتنج المركب الهجين من حيث التغير اللوني

الملخص EN

Aim : This study aims to evaluate the discoloration between nano and hybrid composite .

Materials and Methods : the sample consists of 240 disc (120 disc made by nano composite ( Supreme XT 3M ESPE co.) (colorA1), 120 discs made by hybrid composite (Quixfil Dentsply co.) ( color A1) ) with specific dimensions.

Each group as divided into four small subgroups consisting of 30 discs.

after that, each subgroup was immersed in the solution of the study (tea , coffee , cola , distal water ) for are week and three weeks at fixed temperatures 37 C.

After that, every disc was taken out, and the new color of each disc was measured by (Vita easy shade) Results : There was no statistically significant differences between the nano and hybrid composite.