Evaluation of Debris Extrusion and Smear Layer Production Following Preparation Using Three Different Nickel Titanium Files | ||
| Egyptian Dental Journal | ||
| Article 5, Volume 64, Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), October 2018, Pages 3567-3574 PDF (726.01 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/edj.2018.79179 | ||
| Authors | ||
| Reem Adel Abdelgawad1; Bassem Mohamed Eid2 | ||
| 1Assistant Professor of Endodontics, College of Dentistry, Taibah University, Medina, Saudi Arabia, Lecturer of Endodontics, Faculty of Dentistry, Suez Canal University, Ismailia,Egypt | ||
| 2Assistant Professor of Endodontics, Al-Farabi College of Dentisrty and Nursing, Jeddah, Saudi Arabia, Lecturer of Endodontics, Faculty of Dentistry, Al-Ahram Canadian University, Giza, Egypt | ||
| Abstract | ||
| Objectives: The aim of this study was to compare the amount of apically extruded debris and the patterns of smear layer formation following the preparation of root canals in extracted human teeth using ProTaper Next, Twisted file, and a reciprocating single-file system. Material and Methods: Forty-five freshly extracted human single-rooted maxillary incisors were divided into 3 groups (n=15) then instrumented using Protaper Next, Twisted files, and Reciproc. The extruded debris were collected in a pre-weighed Eppendorf tubes. The tubes were stored in an incubator at 70 °C for 2 days before weighing the dry debris using analytical balance. The debris weight was determined by subtracting the initial weight from the final weight. Root samples were splitted longitudinally into two halves by making grooves then root halves (cervical, middle and apical) thirds were examined using Environmental Scanning Electron Microscope ESEM (FEI Quanta 250 FEG, Berlin, Germany) at ×1500 magnification. All the data were subjected to statistical analysis using Chi-squared, Fisher`s Extract. Results: The three tested rotary nickel titanium files produced comparable amount of debris extrusion and smear layer patterns covering the root canal dentin walls. Apical third showed the heaviest accumulation of smear layer. | ||
| Keywords | ||
| Debris extrusion; Protaper Next; Twisted file; Reciproc; Smear layer | ||
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