Abstract
Objective: The aim of this study was to investigate the release of methacrylic acid from four commercial dental composite restoratives (Silux Plus (3M), Z100 (3M), Ariston pHc (Vivadent) and Surefil (Dentsply)).
Methods: Three specimen disks Math Eq in diameter and Math Eq thick), were prepared for each material using custom-made molds. Each disk was placed in artificial saliva for 24 h at 37°C, rinsed and subsequently immersed in 1.5 ml of deionised water in an airtight glass container. The container was continuously shaken at a speed of 80 rpm for 24 h at 37°C in an orbital incubator. After 24 h (Day 1), the water was removed and analyzed. The specimen disk was then re-immersed into another 1.5 ml of fresh deionised water. The procedure of removing and refilling of the water was repeated for a total of 7 days. The sample solutions were filtered and injected into the capillary electrophoresis system for analysis immediately after collection. Statistical analysis was performed by ANOVA and Scheffe's test.
The leading cause of oral pain and tooth loss is from caries and their treatment
include restoration using amalgam, resin, porcelain and gold, endodontic therapy and
extraction. Resin composite restorations have grown popular over the last half a century
because it can take shades more similar to enamel. Here, we discuss the history and use of
resin, comparison between amalgam and resin, clinical procedures involved and finishing
and polishing techniques for resin restoration. Although resin composite has aesthetic
advantages over amalgam, one of the major disadvantage include polymerization shrinkage
and future research is needed on reaction kinetics and viscoelastic behaviour to minimize
shrinkage stress.