Effect of Preflaring on Accuracy of Endodontic Length Determination by Four Electronic Apex Locators

Authors

Arash Izadi, Dental Research Center, Golestan University of Medical Sciences, Gorgan, IranFollow
Maliheh Bayandari, Dental Research Center, Golestan University of Medical Sciences, Gorgan, IranFollow
Ezatolah Kazeminejad, Dental Research Center, Golestan University of Medical Sciences, Gorgan, IranFollow

Abstract

Objective: Root canal anatomy significantly impacts the working length determination. This study aimed to investigate the effect of the preflaring technique on the accuracy of four electronic apex locators. Methods: Forty-five single-canal central maxillary teeth were selected. The working length was measured before and after the coronal preparation by four types of electronic apex locators in the range of ±0.5 and ±1 mm matched for the apical constriction. The actual working length was calculated under a microscope. Data were analyzed using ICC and paired t-tests in SPSS16. A p < 0.05 was considered significant. Results: The accuracies of Root ZX, DTE, Denjoy, and Coxo apex locators in the range of ± 0.05 mm were 71.1, 93.3, 84.4, and 75.6% before preflaring, and 82.2, 93.3, 97.8, and 100% after that. The corresponding values in the range of ±1 mm were 86.7, 97.8, 93.3, and 100% before and 97.8, 100, 100, and 100% after preflaring. Significant differences were found between the working lengths measured by the four devices and the actual working lengths before and after preflaring. Conclusion: The preflaring technique could impact the performance of apex locators in determining the working length and may be advocated for better outcomes.

References

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Recommended Citation

Izadi, A., Bayandari, M., & Kazeminejad, E. Effect of Preflaring on Accuracy of Endodontic Length Determination by Four Electronic Apex Locators. J Dent Indones. 2022;29(3): 165-171