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Publisher: Peytchinski Publishing
ISSN: 1312-773X (Online)
Issue: 2018, vol. 24, issue4
Subject Area: Dental Medicine
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DOI: 10.5272/jimab.2018244.2245
Published online: 23 November 2018
Original article
J of IMAB. 2018 Oct-Dec;24(4):2245-2249
INCIDENCE OF DENTINAL MICROCRACKS AFTER ROOT CANAL PREPARATION WITH TWO RECIPROCATING SYSTEMS: A STEREOMICROSCOPIC STUDY
Irina Tsenova
, Radosveta Vassileva, Emilia Karova,
Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria.
ABSTRACT:
Purpose: The objective of the present study was to evaluate the incidence of microcracks after root canal preparation with two reciprocating systems.
Materials and methods: Thirty – six freshly extracted mandibular incisors were selected for this in vitro study. The samples were allocated in three groups (n=12): negative control, Reciproc, WaveOne Gold. Roots in the control group were left unprepared. Reciproc R25 and WaveOne Gold Primary files were used in the other groups. After shaping of the root canals teeth were horizontally sectioned at 3, 6, 9 mm from the apex and the presence of dentinal defects were registered. These data were analyzed statistically by Fisher’s exact and chi-square tests (p < 0.05).
Results: No defects were observed in the control group. All instruments caused dentinal microcracks with no statistically significant differences between the two systems. Defects in the apical region in both experimental groups differed statistically from those in the coronal portion of the roots.
Conclusions: WaveOne Gold and Reciproc systems performed equally and resulted in dentinal defect formation regardless of their alloy type, taper and cross-section.
Keywords: NiTi instruments, WaveOne Gold, Reciproc, microcracks, instrumentation,
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Please cite this article as: Tsenova I, Vassileva R, Karova E. Incidence of Dentinal Microcracks after Root Canal Preparation with Two Reciprocating Systems: A Stereomicroscopic Study. J of IMAB. 2018 Oct-Dec;24(4):2245-2249. DOI: 10.5272/jimab.2018244.2245
Correspondence to: Irina Tsenova, Assistant Professor, Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University – Sofia; 1, St Georgi Sofiyski blvd., 1413 Sofia, Bulgaria; E-mail: irinatsenova@yahoo.com
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Received: 08 August 2018
Published online: 23 November 2018