Efektivitas Ekstrak Buah Okra Hijau (Abelmoschus Esculentus) 12,5% dalam Menghilangkan Smear Layer Dinding Saluran Akar

Abstract

The smear layer is a thin layer formed due to the friction of endodontic instrument during preparation.The smear layer must be removed with root canal irrigation material, namely NaOCl 2.5%, but it causes toxic effects if pushed to the periapical, so it is necessary to use natural ingredients as an alternative, one of which is green okra fruit extract (Abelmoschus esculentus). The purpose of this study was to analyze the ability of green okra fruit extract to remove the smear layer on the root canal wall. This research is a laboratory experimental research with a posttest-only control group design. There were two test groups used, namely 2.5% NaOCl solution (group A) and 12.5% green okra fruit extract (group B), each with 5 pieces. The samples used were maxillary premolar teeth cut at the cervical level of the tooth. Root samples were embedded in red wax blocks, and then the buccal root canal was prepared using conventional techniques until K-file #50. The root canal was irrigated with 2.5% NaOCl solution and 12.5% green okra fruit extract at each instrument change, then irrigated again with distilled water and dried. The section observed by Scanning Electron Microscope (SEM) was the middle third of the root canal. SEM photography results were calculated based on the Hülsmann scoring system. Both groups scored 3, meaning the smear layer covers most of the root canal wall, and no or only a few dentinal tubules are exposed. The results of Mann Whitney U Test showed p = 0.606, which indicates there is no significant difference in the two sample groups, so it can be concluded that 12.5% green okra fruit extract and 2.5% NaOCl solution have the same effectiveness in removing the smear layer of the root canal wall.