Hard‐tissue debris accumulation created by conventional rotary versus self‐adjusting file instrumentation in mesial root canal systems of mandibular molars
- 22 December 2011
- journal article
- research article
- Published by Wiley in International Endodontic Journal
- Vol. 45 (5), 413-418
- https://doi.org/10.1111/j.1365-2591.2011.01991.x
Abstract
AIM: To evaluate the accumulation of hard-tissue debris when using the Self-adjusting File (SAF) system in mesial roots of mandibular molars with isthmuses and to compare it with that occurring when the ProTaper file system was used.\ud METHODOLOGY: Forty extracted human mandibular molars with joining mesial root canals and an isthmus between the two canals were randomly assigned to two experimental groups and scanned using micro-computed tomography. Root canals in the control group (N = 20) were instrumented using the ProTaper rotary system until F3. Irrigation with 1 mL of 3% NaOCl solution was applied after each instrument. Root canals in the experimental group (N = 20) were prepared using the SAF for 4 min, with continuous irrigation (3% NaOCl, 4 mL min(-1)). After rescanning, canals in both groups were further irrigated with 5 mL of 17% EDTA for 2 min. After final scanning, the per cent value of total canal system volume filled with hard-tissue debris was calculated. Statistical analysis was performed using Mann-Whitney U-test; the alpha-type error was set at 1%.\ud RESULTS: Instrumentation of the root canals with ProTaper left 10.1% (IQR 5.2) of the total canal system volume filled with hard-tissue debris while preparation with the SAF left 1.7% (IQR 1.6). This difference was highly significant (P < 0.0001). After subsequent EDTA irrigation, these values were significantly reduced (P < 0.01) to 7.9% (IQR 4.1) and 1.3% (IQR 0.8) in the ProTaper and SAF groups, respectively.\ud CONCLUSION: Preparation with the SAF system resulted in less hard-tissue debris accumulation in isthmus-containing root canal systems compared with instrumentation with ProTaper rotary filesKeywords
This publication has 14 references indexed in Scilit:
- The Self-Adjusting File Optimizes Debridement Quality in Oval-shaped Root CanalsJournal of Endodontics, 2011
- Micro–computed Tomography Evaluation of the Preparation of Long Oval Root Canals in Mandibular Molars with the Self-adjusting FileJournal of Endodontics, 2011
- Suboptimal Debridement Quality Produced by the Single-file F2 Protaper Technique in Oval-shaped CanalsJournal of Endodontics, 2010
- The Quality of Root Canal Preparation and Root Canal Obturation in Canals Treated with Rotary versus Self-adjusting Files: A Three-dimensional Micro-computed Tomographic StudyJournal of Endodontics, 2010
- The Self-adjusting File (SAF). Part 1: Respecting the Root Canal Anatomy—A New Concept of Endodontic Files and Its ImplementationJournal of Endodontics, 2010
- The Self-adjusting File (SAF). Part 2: Mechanical AnalysisJournal of Endodontics, 2010
- Hard-Tissue Debris Accumulation Analysis by High-Resolution Computed Tomography ScansJournal of Endodontics, 2009
- Limited Ability of Three Commonly Used Thermoplasticized Gutta-Percha Techniques in Filling Oval-shaped CanalsJournal of Endodontics, 2008
- Effects of Dentin on the Antimicrobial Properties of Endodontic MedicamentsJournal of Endodontics, 2007
- Microbial status of apical root canal system of human mandibular first molars with primary apical periodontitis after “one-visit” endodontic treatmentOral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology, 2005