Perbandingan Daya Antibakteri Disinfektan Instrumen Preparasi Saluran Akar Natrium Hipoklorit 5,25%, Glutaraldehid 2%, dan Disinfektan Berbahan Dasar Glutaraldehid terhadap Bacillus Subtilis

Abstract

The aim of this study was to determine the differences between NaOCl concentration of 2.5% and 5.25% as irrigation material against push out bond strength of gutta percha root canal filler and epoxy resin along with resilon and methacrylate resin.

The subjects of this study were 28 mandibular premolars. Root canals were prepared using rotary files up to #40/0.04. Subjects were divided into four groups of 7 teeth. IA group was irrigated using 2,5% NaOCl, followed by 17% EDTA and then obturated using gutta percha/ epoxy resin. IB group was irrigated using 2.5% NaOCl, followed by 17% EDTA and then filled with Resilon/methacrylate resin, IIA group was irrigated using 5.25% NaOCl, followed by 17% EDTA and then obturated by using gutta percha/epoxy resin, Group IIB was irrigated using 5.25% NaOCl, 17% EDTA and then obturated by using Resilon/methacrylate resin. The orifice filled with glass ionomer cement and stored in an incubator at a temperature of 37⁰ C for 7 days. Specimens were then horizontally sectioned at apical third of 2 mm thickness and push out bond strength test were done with the Universal Testing
machine. The data were analyzed with two way ANOVA and LSD test (á = 0.05%). adherence failure of root canal filling material observed with stereo microscope at 40x magnification.

The mean push out bond strength of the group irrigated with 2.5% NaOCl and filled with gutta percha and epoxy resin was higher than the other groups. Two-way ANOVA test proved thatthere were significant difference of push out bond strength between groups and LSD test showed that a concentration of 2.5% NaOCl irrigation with gutta percha filler and epoxy resin sealer has the greatest mean significant difference from the other groups.

It was concluded that push out bond strength with 2.5% NaOCl irrigation and gutta percha filling material and epoxy resin sealer was higher than the other groups.