Efficacy of Bioactive Restorative Materials in Prevention of Enamel-Demineralization

• Published in: International dental journal Vol. 74; p. S302
• Main Authors: Uygunoz, Buse, Meral, Ece, Tekce, Aybuke Uslu, Cakir, Filiz Yalcin
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.10.2024
• ISSN: 0020-6539
• DOI: 10.1016/j.identj.2024.07.295

The aim of the study was to evaluate the preventive effect of different bioactive restorative materials on the neighbouring enamel under erosive conditions. Forty-eight human enamel specimens were prepared. After the baseline hardness measurements were performed using a Vickers microhardness tester (Shimadzu, Tokyo, Japan) the specimens were randomly divided into 4 groups (n=12) and each specimen were placed in contact with one of the following proximal restorative materials: EQUIA Forte® (GC Europe, Leuven, Belgium ), Cention Forte ( Ivoclar Vivadent AG, Liechten- stein, Germany ), Beautiful II( Shofu, Kyoto, Japan) and FiltekTM Z550 (3M ESPE, Minnesota, USA). The specimens were then subjected to an erosive procedure (immersion in coca cola 15 minutes, 3 times a day for 7 days). The final microhardness measurements were performed and the surface topographies of the specimens from each group were evaluated, before and after erosive challenge, with a scanning electron microscope (SEM). The data were subjected to statistical analysis using ANOVA and post-hoc Tukey tests. Significant decreases in microhardness values were observed in all materials except Equia Forte compared to baseline (p<0.05). The specimens in contact with composite resin showed higher decrease in microhardness compared to Equia Forte and Cention Forte (p<0.05). Bioactive materials like Equia Forte and Cention Forte might be better alternatives for preventing demineralization of neighbouring enamel compared to composite resin.