Perbedaan Teknik Irigasi Saluran Akar menggunakan File Niti Rotary, Canal Brush dan Aktivasi Sonik terhadap Residu Kalsium Hidroksida pada Sepertiga Apikal Dinding Saluran Akar

Abstract

Calcium hydroxide is intracanal medicament most widely used in multi-visit root canal treatment. Calcium hydroxide in root canal must be removed prior to obturation, because residual calcium hydroxide on root canal may lead to apical leakage. This can cause unhermetic root canal obturation. The aim of this study is to determine differences in root canal irrigation techniques using rotary NiTi file, canal brush and sonic activation of the residual calcium hydroxide in the apical third root canal wall.

Twenty seven mandibular first premolars were used in this study. The crowns of the teeth were removed at the apical part of cemento enamel junction (CEJ ) 14 mm from apical. The canals were prepared with a crown down technique with ProTaper rotary files up to file F3. All subjects were applied with pasta calcium hydroxide + glycerin, then the specimens were randomly devided into 3 groups. Group 1 used rotary NiTi files, group 2 used canal brush and group 3 used sonic activation. Each specimen wassagittal devided, observed using stereo microscop at 30x magnification. The degree of calcium hydroxideresidue were calculated using image raster 3 software. Data were analyzed using one-way ANOVA and compared using post hoc test at 5% significance. According to the data, there was statistical difference between NiTi rotary file and canal brush (p<0,05), NiTi rotary file
and sonic activation (p<0,05), there was no stastitical difference between canal brush and sonic activation (p>0,05). Based on the  result of this study, it can be concluded that canal brush and sonic activation has the same ability which is better than NiTi rotary file in cleaning the residual calcium hydroxide in the apical third root canal wall.