Evaluation of root dentin defect formation during retreatment procedure using various NiTi rotary retreatment files: an in vitro study

Hande Kurşun; Sıtkı Selçuk Gökyay; Turgut Yağmur Yalçın; Muzaffer Emir Dinçol

doi:10.59313/jsr-a.1862681

Evaluation of root dentin defect formation during retreatment procedure using various NiTi rotary retreatment files: an in vitro study

Abstract

The focus of the present study was to evaluate the incidence of dentinal microcracks following use of three distinct NiTi-based retreatment systems on extracted human teeth. 125 extracted human mandibular premolars with single canals and roots were selected for the study. The remaining 100 teeth were prepared using the ProTaper Next NiTi rotary system up to the X3 file (30/.07), while 25 specimens were left unprepared as controls. Gutta-percha cones and TotalFill BC sealer were used in a single-cone procedure to obturate the canals. There was no retreatment after 25 teeth were filled. Three experimental groups (n=25) were randomly selected 75 specimens based on retreatment system: ProTaper Universal Retreatment, R-Endo and XP-endo Rise Retreatment. In order to detect and score any dentinal crack formation, the roots were carefully examined under a stereomicroscope at 20× magnification after completing retreatment procedures. NCSS was used for statistical analysis. Chi-square and McNemar tests were used for calculating descriptive statistics. A p-value <0.05 was considered significant. No significant differences were observed among retreatment systems and control groups at any root level regarding dentinal defect scores or presence (p > 0.05). The majority of specimens showed no defects, and higher defect scores were infrequently observed. The negative control showed intact dentin throughout, and the positive control demonstrated minimal defects. Neither inter- nor intragroup comparisons revealed significant differences, and none of the instruments significantly increased dentinal defect incidence; however, the XP-endo Rise system showed a nonsignificant tendency toward fewer defects.

Keywords

References

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Details

Primary Language

English

Subjects

Endodontics

Journal Section

Research Article

Authors

Hande Kurşun ^*
0009-0006-5062-0242
Türkiye

Sıtkı Selçuk Gökyay
0000-0003-2660-6329
Türkiye

Turgut Yağmur Yalçın
0000-0001-9737-9499
Türkiye

Muzaffer Emir Dinçol
0000-0001-8258-8327
Türkiye

Publication Date

March 30, 2026

Submission Date

January 13, 2026

Acceptance Date

March 16, 2026

Published in Issue

Year 2026 Number: 064

DOI

https://doi.org/10.59313/jsr-a.1862681

IZ

https://izlik.org/JA94YF74CA

Cite

RIS / Bibtex

APA

Kurşun, H., Gökyay, S. S., Yalçın, T. Y., & Dinçol, M. E. (2026). Evaluation of root dentin defect formation during retreatment procedure using various NiTi rotary retreatment files: an in vitro study. Journal of Scientific Reports-A, 064, 78-89. https://doi.org/10.59313/jsr-a.1862681

AMA

1.Kurşun H, Gökyay SS, Yalçın TY, Dinçol ME. Evaluation of root dentin defect formation during retreatment procedure using various NiTi rotary retreatment files: an in vitro study. JSR-A. 2026;(064):78-89. doi:10.59313/jsr-a.1862681

Chicago

Kurşun, Hande, Sıtkı Selçuk Gökyay, Turgut Yağmur Yalçın, and Muzaffer Emir Dinçol. 2026. “Evaluation of Root Dentin Defect Formation During Retreatment Procedure Using Various NiTi Rotary Retreatment Files: An in Vitro Study”. Journal of Scientific Reports-A, nos. 064: 78-89. https://doi.org/10.59313/jsr-a.1862681.

EndNote

Kurşun H, Gökyay SS, Yalçın TY, Dinçol ME (March 1, 2026) Evaluation of root dentin defect formation during retreatment procedure using various NiTi rotary retreatment files: an in vitro study. Journal of Scientific Reports-A 064 78–89.

IEEE

[1]H. Kurşun, S. S. Gökyay, T. Y. Yalçın, and M. E. Dinçol, “Evaluation of root dentin defect formation during retreatment procedure using various NiTi rotary retreatment files: an in vitro study”, JSR-A, no. 064, pp. 78–89, Mar. 2026, doi: 10.59313/jsr-a.1862681.

ISNAD

Kurşun, Hande - Gökyay, Sıtkı Selçuk - Yalçın, Turgut Yağmur - Dinçol, Muzaffer Emir. “Evaluation of Root Dentin Defect Formation During Retreatment Procedure Using Various NiTi Rotary Retreatment Files: An in Vitro Study”. Journal of Scientific Reports-A. 064 (March 1, 2026): 78-89. https://doi.org/10.59313/jsr-a.1862681.

JAMA

1.Kurşun H, Gökyay SS, Yalçın TY, Dinçol ME. Evaluation of root dentin defect formation during retreatment procedure using various NiTi rotary retreatment files: an in vitro study. JSR-A. 2026;:78–89.

MLA

Kurşun, Hande, et al. “Evaluation of Root Dentin Defect Formation During Retreatment Procedure Using Various NiTi Rotary Retreatment Files: An in Vitro Study”. Journal of Scientific Reports-A, no. 064, Mar. 2026, pp. 78-89, doi:10.59313/jsr-a.1862681.

Vancouver

1.Hande Kurşun, Sıtkı Selçuk Gökyay, Turgut Yağmur Yalçın, Muzaffer Emir Dinçol. Evaluation of root dentin defect formation during retreatment procedure using various NiTi rotary retreatment files: an in vitro study. JSR-A. 2026 Mar. 1;(064):78-89. doi:10.59313/jsr-a.1862681