Research Article

Retreatability of guttaflow bioseal in bulk or with main cone from root canals using ultrasonic, laser, and xp-endo finisher activated techniques

Volume: 60 Number: 1 June 15, 2026

Retreatability of guttaflow bioseal in bulk or with main cone from root canals using ultrasonic, laser, and xp-endo finisher activated techniques

Abstract

Purpose
The aim of this study was to investigate the efficacy of ultrasonic, laser, and XPEndo Finisher activation techniques for the removal of GuttaFlow Bioseal from root canals.
Materials and Methods
In this study, 64 extracted mandibular premolar teeth were instrumented using ProTaper Next files up to size X3 and randomly divided into two groups (n = 32) based on the obturation method: Group 1 — GuttaFlow Bioseal with gutta-percha, and Group 2 — GuttaFlow Bioseal without gutta-percha. After root filling removal, the specimens were randomly allocated into one of four activation subgroups (n = 8): Subgroup A — Conventional Needle Irrigation; Subgroup B — Passive Ultrasonic Activation; Subgroup C — XP-Endo Finisher; and Subgroup D — Er, Cr: YSGG Laser. The teeth were then sectioned longitudinally, and photographic images were captured under a stereomicroscope. Residual filling materials in the coronal, middle, and apical thirds were measured using ImageJ software. Data were statistically analyzed with three-way ANOVA and Tukey’s HSD test (p < 0.05).
Results
The lowest amount of residual filling material was observed in the Er, Cr: YSGG laser group, followed by the XP-Endo Finisher, passive ultrasonic activation, and conventional needle irrigation groups, respectively (p < 0.001). There was no statistically significant difference in retreatability between GuttaFlow Bioseal used with or without gutta-percha (p = 0.754).
Conclusion
This study demonstrates that different activation techniques significantly improve the removal of GuttaFlow Bioseal from root canals; however, none achieved complete removal. Among the tested methods, the Er, Cr: YSGG laser was the most effective, followed by the XP-Endo Finisher and passive ultrasonic activation. These results suggest that the Er, Cr: YSGG laser is a highly effective option for endodontic retreatment.

Keywords

References

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Details

Primary Language

English

Subjects

Endodontics

Journal Section

Research Article

Publication Date

June 15, 2026

Submission Date

August 20, 2024

Acceptance Date

March 25, 2025

Published in Issue

Year 2026 Volume: 60 Number: 1

APA
Özlek, E., Kadı, G., Gündüz, H., & Saed, Y. M. K. (2026). Retreatability of guttaflow bioseal in bulk or with main cone from root canals using ultrasonic, laser, and xp-endo finisher activated techniques. European Oral Research, 60(1), 79-85. https://doi.org/10.26650/eor.20251536018
AMA
1.Özlek E, Kadı G, Gündüz H, Saed YMK. Retreatability of guttaflow bioseal in bulk or with main cone from root canals using ultrasonic, laser, and xp-endo finisher activated techniques. EOR. 2026;60(1):79-85. doi:10.26650/eor.20251536018
Chicago
Özlek, Esin, Gizem Kadı, Hüseyin Gündüz, and Yousef M K Saed. 2026. “Retreatability of Guttaflow Bioseal in Bulk or With Main Cone from Root Canals Using Ultrasonic, Laser, and Xp-Endo Finisher Activated Techniques”. European Oral Research 60 (1): 79-85. https://doi.org/10.26650/eor.20251536018.
EndNote
Özlek E, Kadı G, Gündüz H, Saed YMK (June 1, 2026) Retreatability of guttaflow bioseal in bulk or with main cone from root canals using ultrasonic, laser, and xp-endo finisher activated techniques. European Oral Research 60 1 79–85.
IEEE
[1]E. Özlek, G. Kadı, H. Gündüz, and Y. M. K. Saed, “Retreatability of guttaflow bioseal in bulk or with main cone from root canals using ultrasonic, laser, and xp-endo finisher activated techniques”, EOR, vol. 60, no. 1, pp. 79–85, June 2026, doi: 10.26650/eor.20251536018.
ISNAD
Özlek, Esin - Kadı, Gizem - Gündüz, Hüseyin - Saed, Yousef M K. “Retreatability of Guttaflow Bioseal in Bulk or With Main Cone from Root Canals Using Ultrasonic, Laser, and Xp-Endo Finisher Activated Techniques”. European Oral Research 60/1 (June 1, 2026): 79-85. https://doi.org/10.26650/eor.20251536018.
JAMA
1.Özlek E, Kadı G, Gündüz H, Saed YMK. Retreatability of guttaflow bioseal in bulk or with main cone from root canals using ultrasonic, laser, and xp-endo finisher activated techniques. EOR. 2026;60:79–85.
MLA
Özlek, Esin, et al. “Retreatability of Guttaflow Bioseal in Bulk or With Main Cone from Root Canals Using Ultrasonic, Laser, and Xp-Endo Finisher Activated Techniques”. European Oral Research, vol. 60, no. 1, June 2026, pp. 79-85, doi:10.26650/eor.20251536018.
Vancouver
1.Esin Özlek, Gizem Kadı, Hüseyin Gündüz, Yousef M K Saed. Retreatability of guttaflow bioseal in bulk or with main cone from root canals using ultrasonic, laser, and xp-endo finisher activated techniques. EOR. 2026 Jun. 1;60(1):79-85. doi:10.26650/eor.20251536018