In Vitro Comparison of Gutta-Percha Removal with H-File and ProTaper with or without Chloroform
| Autor: | Pouneh Moshkelgosha, Bahareh Dadresanfar, Mehdi Vatanpour, Zohreh Khalilak, HamidReza Nourbakhsh |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Iranian Endodontic Journal, Vol 8, Iss 1, Pp 6-9 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1735-7497 2008-2746 |
| Popis: | Introduction: Removal of root filling materials is one of the key steps in success of root canal retreatment. The purpose of this study was to evaluate the efficacy of H-File and ProTaper with or without chloroform in the removal of gutta-percha during retreatment of mandibular premolars. Materials and Methods: Sixty mandibular premolars with one canal, and curvatures less than 30 degrees were used in this experimental study. They were instrumented with K-files and laterally obturated with condensed gutta-percha using AH26 as the sealer and were stored in 100% humidity at 37°C for 2 weeks. The teeth were randomly divided into four groups of 15 teeth each. Removal of gutta-percha was performed with H-File and ProTaper. All techniques were used with or without chloroform. The teeth were split longitudinally and the area of remaining gutta-percha/sealer on the root canal wall was explored under stereomicroscope. Retreatment time duration was also recorded for each sample. Data were analyzed statistically by Two-way ANOVA, t-test and Tukey’s. Results: In all groups, no significant difference was found in remaining gutta-percha and sealer with or without using chloroform, but chloroform shortened the time of retreatment. ProTaper left significantly less remaining filling materials than H-File (P |
| Databáze: | Directory of Open Access Journals |
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