head JofIMAB
Journal of IMAB - Annual Proceeding (Scientific Papers)
Publisher: Peytchinski Publishing
ISSN: 1312-773X (Online)
Issue: 2018, vol. 24, issue4
Subject Area: Dental Medicine
DOI: 10.5272/jimab.2018244.2245
Published online: 23 November 2018

Original article

J of IMAB. 2018 Oct-Dec;24(4):2245-2249
Irina TsenovaORCID logo Corresponding Autoremail, Radosveta VassilevaORCID logo, Emilia KarovaORCID logo,
Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University – Sofia, Bulgaria.

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

Corresponding AutorCorrespondence 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

1. Versiani A, Souza E, De-Deus G. Critical appraisal of studies on dentinal radicular microcracks in endodontics: methodological issues, contemporary concepts, and future perspectives. Endod Topics. 2015 Nov;33(1):87-156. [Crossref]
2. Karova E. Properties of nickel-titanium alloy. In Nickel-titanium rotary instruments - a guide for students. Sofia: Valdex Ltd.; 2015. 120 p.
3. Bürklein S, Tsotsis P, Schäfer E. Incidence of dentinal defects after root canal preparation: reciprocation versus rotary instrumentation. J Endod. 2013 Apr;39(4):501-4. [PubMed] Crossref]
4. Liu R, Hou BX, Wesselink PR, Shemesh H. The incidence of root microcracks caused by 3 different single-file systems versus the ProTaper system. J Endod. 2013 Aug;39(8):1054-6. [PubMed] [CrossRef]
5. Al-Zaka IM. The effects of canal preparation by different NiTi rotary instruments and reciprocating WaveOne on the incidence of dentinal defects. M Dent J. 2012;9(2):137-142.
6. Kim HC, Lee MH, Yum J, Versluis A, Lee CJ, Kim BM. Potential relationship between design and vertical root fracture. J Endod, 2010 Jul;36(7):1195-9. [PubMed] [Crossref]
7. Liu R, Kaiwar A, Shemesh H, Wesselink PR, Hou B, Wu MK. Incidence of apical root cracks and apical dentinal detachments after canal preparation with hand and rotary files at different instrumentation lengths. J Endod. 2013 Jan;39(1):129-32. [PubMed] [Crossref]
8. Tsenova I, Vassileva R, Karova E. The ability of root canal cleaning and shaping procedures to initiate dentinal radicular microcracks. Int J Sci Res. 2018 Aug;7(8):1558-1565.
9. De-Deus G, Brandao MC, Barino B, Di Giorgi K, Fidel RA, Luna AS. Assessment of apically extruded debris produced by the single-file ProTaper F2 technique under reciprocating movement. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Sep;110(3):390-394. [PubMed] [Crossref]
10. Schäfer E, Schulz-Bongert U, Tulus G. Comparison of hand stainless steel and nickel titanium rotary instrumentation: a clinical study. J Endod. 2004 Jun;30(6):432-5. [PubMed] [Crossref]
11. Wei X, HU B, Peng H, Tang M, Song J. The incidence of dentinal cracks during root canal preparations with reciprocating single-file and rotary-file systems: A meta – analysis. Dent Mater J. 2017 May;36(3):243-252. [PubMed] [Crossref]
12. Jamleh A, Komabayashi T, Ebihara A, Nassar M, Watanabe S, Yoshioka T, et al. Root surface strain during canal shaping and its influence on apical microcrack development: a preliminary investigation. Int Endod J. 2015 Dec;48(12):1103-1111. [PubMed] [Crossref]
13. Zupanc J, Vahdat-Pajouh N, Schäfer E. New thermomechanically treated NiTi alloys – a Review. Int Endod J. 2018 Oct;51(10):1088-1103. [PubMed] [Crossref]
14. Cassimiro M, Romeiro K, Gominho L, De Almeida A, Silva L, Albuquerque D. Effects of Reciproc, ProTaper Next and WaveOne Gold on Root Canal Walls: A Stereomicroscope Analysis. Iran Endod J. 2018 Sping;13(2):228-233. [PubMed] [Crossref]
15. Cassimiro M, Romeiro K, Gominho L, Almeida A, Costa L, Albuquerque D. Occurrence of dentinal defects after root canal preparation with R-phase, M-wire and Gold Wire instruments: a micro-CT analysis. BMC Oral Health. 2017 Jun 2;17(1):93. [PubMed] [Crossref]
16. Karataş E, Gündüz HA, Kırıcı DÖ, Arslan H. Incidence of dentinal cracks after root canal preparation with ProTaper Gold, Profile Vortex, F360, Reciproc and ProTaper Universal instruments. Int Endod J. 2016 Sep;49(9):905-910. [PubMed] [Crossref]
17. Helvacioglu-Yigit D, Aydemir S, Yilmaz A. Evaluation of dentinal defect formation after root canal preparation with two reciprocating systems and hand instrumentation: an in vitro study. Biotechnol Biotechnol Equip. 2015 Mar;29(2):368-373. [PubMed] [Crossref]
18. Lertchirakarn V, Palmara JE, Messer HH. Patterns of vertical root fracture: factors affecting stress distribution in the root canal. J Endod. 2003 Aug;29(8):523-528. [PubMed] [Crossref]
19. Basrani B, Haapasalo M. Update on endodontic irrigating solutions. Endod Top. 2012 Sep;27(1):74-102. [Crossref].

Received: 08 August 2018
Published online: 23 November 2018

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