Pengaruh Perendaman Resin Akrilik Heat Cured dalam Ekstrak Biji Edamame (Glycine max L. Merrill) Konsetrasi 50% Sebagai Pembersih Gigi Tiruan Lepasan Terhadap Kekuatan Tekan

Abstract

Introduction: Heat cured acrylic resin is widely used denture base material that has several properties such as porosity and can absorb water. Prolonged use of a denture requires periodical cleaning. However, chemical denture cleanser may increase the surface roughness of this acrylic resin. So nowadays, there are many natural-based denture cleanser was developed, one of the potential natural cleanser is edamame seed extract at 50% concentration. Edamame seed extract contains phenol as antibacterial dan antifungal, but phenol also have potential to affect the compressive strength of heat cured acrylic resin. This research aims to determine the effect of soaking heat cured acrylic resin in 50% concentration of edamame seed extract on the compressive strength of heat cured acrylic resin. Methods: This study was laboratory experimental used a post test only group design. The form of sample used is a square plate with size of 10x10x2mm, which divided into three groups : group soaked in steriled distilled water, group soaked in commersial effervescent tablets, and group soaked in edamame seed extract at 50% concentration. The test of compressive strength was using Universal Testing Machine. Result: The results of compressive strength test showed that the group soaked with sterile distilled water had the highest strength of 407.12 MPa, second highest was the group soaked in edamame seed extract at 345,55 MPa, and the lowest was group soaked in commercial effervescent tablets at 323,76 MPa. Data was analyzed using Welch Anova and followed by Games-Howell Post-hoc test. The result obtained significant value (p<0,05), that indicated there are significant different between each of the group based on the Games Howell Post-hoc test. Conclusion: This study can conclude that soaking the heat cured acrylic resin in edamame seed extract at 50% concentration has an effect in reducing the compressive strength of heat cured acrylic resin.