Kekuatan Tekan Resin Komposit Nanohybrid setelah Direnda dalam Obat Kumur Povidon Iodin 1% dalam Kurun Waktu yang Berbeda

Abstract

Nanohybrid composite resin is a restorative material that has a combination of micro-sized and nanometer-sized filler materials. Compressive strength is the internal resistance to withstand the loads until the object fractures. The compressive strength of restorative materials is influenced by various factors, one of which is the use of mouthwash This study aims to determine the influence of 1% povidone-iodine mouthwash on the nanohybrid composite resin compressive strength. This study used 30 samples of cylindrical nanohybrid composite resin with a diameter of 3 mm and a height of 6 mm. Samples were divided into five groups, with group 1 as the control group and 4 others soaked in 1% povidone-iodine mouthwash with different duration; group 2 (3 hours), group 3 (6 hours), group 4 (9 hours), group 5 (12 hours). The sample was light-cured with a layering technique. Samples were first soaked in an aquades solution for 24 hours in an incubator at 37ºC, followed by being soaked in 1% povidone-iodine mouthwash with different duration in the incubator at 37ºC. Compressive strength was measured using a Universal Testing Machine. The results of the mean and standard deviation of the compressive strength were 76.13 ± 4.07 MPa in group 1, 60.53 ± 4.44 MPa in group 2, 40.75 ± 2.11 MPa in group 3, 31.81 ± 4.05 MPa in group 4, and 18.28 ± 2.06 MPa in group 5. The One-way ANOVA test found differences in the compressive strength of the nanohybrid composite resins after being soaked in 1% povidone-iodine mouthwash for 3 hours, 6 hours, 9 hours, and 12 hours. The results of the Post Hoc LSD test indicated a significant difference in compressive strength between groups. It can be concluded that there were significant differences in the compressive strength of nanohybrid composite resin after being soaked in 1% povidone-iodine mouthwash for 3 hours, 6 hours, 9 hours, and 12 hours.