Efficacy of Combined Use of Different Nickel-Titanium Files on Removing Root Canal Filling Materials
Autor: | Selen Küçükkaya, Can Ilgin, Melahat Görduysus, Emel Uzunoglu, Mehmet Ömer Görduysus, Sinan Yürüker, Behram Tuncel, Orhan Gulen |
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Rok vydání: | 2015 |
Předmět: |
Cone beam computed tomography
Dental Instruments Root canal Dentistry Root Canal Filling Materials 03 medical and health sciences Random Allocation 0302 clinical medicine Nickel Root Canal Obturation Materials Testing medicine Humans General Dentistry Mathematics Dental Pulp Cavity Titanium business.industry 030206 dentistry Equipment Design Cone-Beam Computed Tomography Dental instruments medicine.anatomical_structure Nickel titanium Retreatment business 030217 neurology & neurosurgery Root Canal Preparation Volume (compression) Dental Alloys |
Zdroj: | Journal of endodontics. 42(3) |
ISSN: | 1878-3554 |
Popis: | Introduction The aim of this study was to estimate the remaining amount of residual filling materials in root canals after retreatment using ProTaper Universal Retreatment (PTUR) files (Dentsply Maillefer, Ballaigues, Switzerland) alone or with the additional use of the Self-Adjusting File (SAF; ReDent-Nova, Ra'anana, Israel), Reciproc (VDW, Munich, Germany), or Hedstrom-files (H-file; VDW, Antaeos, Munich, Germany) with volumetric estimation using the stereologic method via cone-beam computed tomographic images. Methods Forty-eight mandibular premolars with single canals were used. The canals were instrumented with ProTaper rotary instruments up to F4 and filled with gutta-percha and AH26 sealer (Dentsply De Trey, Johnson City, TN). All the samples were placed into the silicone models. Samples were scanned with cone-beam computed tomographic imaging and assigned into 4 groups ( n = 12) according to retreatment files: the PTUR system group, the PTUR system plus SAF group, the PTUR system plus Reciproc group, and the PTUR system plus H-file group. The specimens were rescanned after retreatment procedures, and the volume estimations of the remaining filling materials were performed using the stereologic method. Data were analyzed using Kruskal-Wallis and Dunn tests. Results There was no significant difference among the groups regarding mean percentage volumes of the filling materials before retreatment procedures ( P > .05). None of the retreatment procedures provided complete removal of the filling materials. The additional use of the SAF did not significantly improve the removal of filling materials when compared with the PTUR system alone ( P > .05). However, the additional use of Reciproc or hand H-files significantly improved the removal of filling materials when compared with the PTUR system alone ( P Conclusions The additional use of files with different motion kinetics improved the removal of root canal fillings; however, none of the systems completely removed the root canal filling material from the root canals. |
Databáze: | OpenAIRE |
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