Comparison of Dental Defects in Oval Root Canals Prepared with Two Distinct End odontic Rotary Files: An In Vitro Analysis

Authors

  • H L Gupta HOD & Professor, Principal, Department of Periodontology and Oral Implantology, Rajasthan Dental College and, Hospital, Nirwan University, Jaipur, Rajasthan
  • Sumit Bhatt PhD Scholar, Assistant Professor, Department of Oral and Maxillofacial Surgery, Rajasthan Dental College & Hospital, Nirwan University, Jaipur, Ra jasthan.
  • Satyanarayana Naidu Senior Lecturer, Department of Conservative Dentistry and Endodontics, Asian Institute of Advanced Dentistry, Hyderabad, Telangana
  • Yash Rajendra Shaha Assistant Professor, Department of Conservative Dentistry and Endodontics, Tatyasaheb Kore Dental College and Research Centre, New Pargaon, Maharashtra

DOI:

https://doi.org/10.48165/vdcmp560

Keywords:

Dentinal Defects, Rotary Files, SEM

Abstract

 Aim: This study aims to investigate and compare the occurrence of dentinal fractures during  root canal preparation using a scanning electron microscope (SEM). Materials and Methods: Thirty extracted human mandibular premolars were divided into  three groups of ten: two experimental groups and one control group. In the experimental  groups, root canals were shaped using Group I: the Waldent Walflex file and Group II: the  Trunatomy (TRN) file. Group III served as the control group with no canal preparation.  After sectioning the roots at 3, 6, and 9 mm from the apex, the surfaces were analyzed using  SEM. Results: Data were analyzed using the Chi-square test. The untreated control group (Group  III) showed no signs of cracks. Dentinal cracks were primarily observed in the Waldent  Walflex group, particularly between the 3 mm and 6 mm intervals.  Conclusion: The study highlights that dentinal cracks are more pronounced with the  Waldent Walflex file. These findings underscore the need for careful selection of endodontic  instruments to minimize the risk of dentinal defects during root canal procedures. Further  research is warranted to explore the long-term implications of these findings on treatment  outcomes.

 

References

Mehta D, Coleman A, Lessani M. Success and failure of endodontic treatment: predictability, complications, challenges and maintenance. Br Dent J. 2025 Apr;238(7):527-535.

Branawal HC, Mittal N, Rani P, Ayubi A, Samad S. Comparison of Dentinal Defects Induced by Rotary, Reciprocating, and Hand Files in Oval Shaped Root Canal - An In-Vitro Study. Indian J Dent Res. 2023 Oct 1;34(4):433-437.

Witwit A, Albazzaz M, Zidane B. Impact of Different Nickel-titanium Instruments on Apical Micro-cracks Formation and Residual Amount of Root Canal Filling Materials Following Retreatment Procedure. Eur Endod J. 2025 Sep;10(5):420-431.

Tejaswi S, Singh A, Manglekar S, Ambikathanaya UK, Shetty S. Evaluation of dentinal crack propagation, amount of gutta percha remaining and time required during removal of gutta percha using two different rotary instruments and hand instruments - An in vitro study. Niger J Clin Pract. 2022 Apr;25(4):524-530.

Branawal HC, Mittal N, Rani P, Ayubi A, Samad S. Comparison of Dentinal Defects Induced by Rotary, Reciprocating, and Hand Files in Oval Shaped Root Canal - An In-Vitro Study. Indian J Dent Res. 2023 Oct 1;34(4):433-437.

. Yoldas O, Yilmaz S, Atakan G, Kuden C, Kasan Z. Dentinal microcrack formation during root canal preparations by different niti rotary instruments and the self-adjusting file. J Endod. 2012;38:232-5.

Rahman H, Chandra A, Singh S. In vitro evaluation of dentinal microcrack formation during root canal preparations by different niti systems. Indian J Restor Dent. 2014;3:43-7.

Çitak M, Özyürek T. Effect of different nickel-titanium rotary files on dentinal crack formation during retreatment procedure. J Dent Res Dent Clin Dent Prospects. 2017 Spring;11(2):90-95.

Verma S, Kaushik N, Nagamaheshwari M, Mehra X, Prasad N, Karthik L. Effect of three different rotary file systems on dentinal crack formation – A stereomicroscopic analysis. Endodontology. 2020;32(4):220-224.

Arora DK, Singha A, Gaafar SS, Parmar N, Kankriya P, Sahoo N, Patadiya HH. The Effect of Different File Motions on the Formation of Apical Debris During Root Canal Preparation. J Pharm Bioallied Sci. 2025 Jun;17(Suppl 2):S1128-S1130.

Published

2025-10-13

How to Cite

Comparison of Dental Defects in Oval Root Canals Prepared with Two Distinct End odontic Rotary Files: An In Vitro Analysis . (2025). Academia Journal of Medicine, 8(2), 35-38. https://doi.org/10.48165/vdcmp560