| Título: | The Effect of Two Post-Space Preparation Techniques on the Seal of Resilon and Gutta-Percha Obturation Materials |
| Autores: |
Ashofteh Yazdi, Kazem; Department of Endodontics, School of Dentistry/Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran. Razmi, Hasan; Department of Endodontics, School of Dentistry/Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran. Ghabraei, Sholeh; Department of Endodontics, School of Dentistry/Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran. Shokouhinejad, Noushin; Department of Endodontics, School of Dentistry/Dental Research Center, Tehran University of Medical Sciences, and Member of Iranian Center for Endodontic Research, Tehran, Iran. Aligholi, Marzieh; Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Rahmani, Saeed; Department of Restorative Dentistry, Dental School, Kerman University of Medical Sciences, Kerman, Iran |
| Fecha: | 2010-06-21 |
| Publicador: |
Iranian Endodontic Journal محله ایرانی اندودونتیکس |
| Fuente: |
Ver documento |
| Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| Tema: | Gutta-Percha, Leakage, Post Space, Resilon, Solvents |
| Descripción: | INTRODUCTION: The aim of this study was to compare the effect of post space preparation with Gates Glidden drills or hand files on the sealing ability of gutta-percha or Resilon obturation materials. MATERIALS AND METHODS: One-hundred and four single-rooted human teeth were instrumented and divided into four experimental groups (n=21 each) and two groups of positive and negative control (n=10). Forty-two roots of experimental groups were obturated with gutta-percha and Dorifill sealer; and 42 roots with Resilon/Epiphany self-etch using lateral compaction technique. Each gutta-percha or Resilon group was divided into two subgroups (n=21) and post-space prepared with either Gates Glidden drills or hand files and chloroform. After post space preparation, 5 mm of apical gutta-percha or Resilon was left intact. The whole system was sterilized with gamma-rays. Saliva leakage was tested using a split-chamber model. Specimens were monitored every 24 hours for 30 days. The data were analyzed using log-rank test and Cox regression analysis. RESULTS: There were no significant differences between the sealing ability of gutta-percha and Resilon. Furthermore, no significant difference was found between two different methods of post space preparation (P>0.05). CONCLUSION: Under the limitations of this ex vivo study, there were no significant differences between the sealing ability of Resilon and gutta-percha after post space preparation using Gates Glidden drills or hand files with the aid of chloroform. |
| Idioma: | Inglés |
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