The effect of various dental filling materials on artificially demineralized dentin.

The aim of this study was to determinate the influence of fluoride, released by all of the restorative materials in the process of remineralization. To achieve this, we measured the concentration of the incorporated fluoride and calcium in dentin. The research was done on 80 extracted third molars, in which we prepared first-class cavities. After the process of decalcination, we split the teeth into four differ-rent groups (with 20 in each). The teeth from each group were separated vertically, in two halves. On the experimental half we applied the examined material (Fiji IX, Fuji Lining LC, G Bond and Prime and Bond) and we used the other half as a control. Later, the specimens were put into a glass bowl together with remineralization solution and were incubated at a temperature of 37 C. The incorporated fluoride and calcium concentration was determined by a significant increase of spectrometer. After applying the specimens in a remineralization solution, we perceived that the level of incorporated Ca2+ on the teeth restored with Fuji IX and Fuji Lining LC was significantly higher compared to the level of incorporated Ca2+ on the teeth, restored with dentin materials. Based on the results from this experiment, the conclusion shows that fluoride, released from the materials and incorporated into the dentin, speeds up the process of remineralization on hard dental tissues.