Effect of Storage Time and Extraction Media on the Elution of Residual Monomer from Resin based Restorative Materials using HPLC

Main Article Content

Vandana Sadananda, Gowrish S, Shreeranga Bhat, Thilla Sekar, Savadamoorthi Kamatchi Subramani

Abstract

Aim: The aim of this study was to evaluate the elution of monomer UDMA from different resin based restorative materials based on the effect of different extraction media and storage time.


Materials and methods: Three materials were tested and evaluated. I: Bulk fill posterior restorative material, FiltekTM Bulk Fill Posterior Restorative material, 3M ESPETM, St. Paul, USA II: Posterior bulk fill flowable resin material, Smart Dentin Replacement, SDRTM, Dentsply, Konstanz, Germany III: Alkasite restorative material – self cure mode and dual cure mode, Cention N, Ivoclar Vivadent AG, Schaan, Liechtenstein. Samples were stored in 75% ethanol solution and artificial saliva. Residual monomers eluted in the solution were analyzed using HPLC after 24 hours and 7 days. The study data was analyzed using One Way ANOVA (p<0.05) and post-hoc Tukey tests.


Results: Group II showed the highest amount of monomer elution, Group III had the least elution of UDMA in both extraction media over different time periods.


Conclusion: The amount of monomer UDMA eluted from the alkasite restorative material was significantly lower than that of other bulk fill resin based materials in different storage media at different time intervals which may be attributed to the presence of single monomer.

Article Details

Section
Articles