Comparative evaluation of surface hardness of three restorative materials on application of in- office bleaching agent-an in vitro study
Journal Title: Scholars Journal of Dental Sciences - Year 2015, Vol 2, Issue 2
Abstract
Abstract: Aim of the study was comparative evaluation of surface hardness of three restorative material after application of one in-office bleaching agents. Material used was 35% Carbamide peroxide (Opalescence, Ultradent), Composite resin- filtek Z-350 XT 3M ESPE,USA ,Glass ionomer cement-GC Fuji II LC, Amalgam-DPI Alloy.30 specimens of composite resin, RMGIC and amalgam were fabricated with custom made round metallic matrix die measuring 12mm in diameter & 2mm high. 10 specimens each further randomly subdivided into three subgroups Group 1-Control group(n=15) stored in only distilled Water for 21 days. Group 2- (n=15) treated with 35% Carbamide peroxide. Each sample were analyzed at baseline and after 21 days by the vicker`s microhardness tester, Reichert Austria.By using student paired t test result showed no significant interaction between materials, treatment groups .The in-office bleaching systems that employ strong oxidizing agents is not detrimental to the surface hardness of composite, silver amalgam and resin-modified glass ionomer cements. Keywords: surface hardness, bleaching, silver amalgam, composite, RMGIC.
Authors and Affiliations
Dr. Manoj G. Chandak, Dr. Aditya Vardhan Patidar, Dr. Nikita Patidar, Dr. Ajay Saxena, Dr. Rakhi Chandak, Dr. Kaustubh Khatod
Keywords
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