A comparison of the apical extrusion of debris by tapering in rotary systems: in vitro experimental study
Aim: Apical extrusion of debris during root canal preparation can lead to inflammation, flare-ups, and delayed recovery. Therefore, instrumentation techniques that minimize debris extrusion are crucial. This study aimed to compare the apical extrusion of debris by four single-file, full-sequence rot...
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Open Exploration Publishing Inc.
2025-08-01
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| Series: | Exploration of Medicine |
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| Online Access: | https://www.explorationpub.com/uploads/Article/A1001351/1001351.pdf |
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| author | Eshaghali Saberi Shima Bijari Farshid Gholami Ebrahim Mohtashami Forough Farahi |
| author_facet | Eshaghali Saberi Shima Bijari Farshid Gholami Ebrahim Mohtashami Forough Farahi |
| author_sort | Eshaghali Saberi |
| collection | DOAJ |
| description | Aim: Apical extrusion of debris during root canal preparation can lead to inflammation, flare-ups, and delayed recovery. Therefore, instrumentation techniques that minimize debris extrusion are crucial. This study aimed to compare the apical extrusion of debris by four single-file, full-sequence rotary systems with different tapers. Methods: In this in vitro study, 68 human maxillary lateral incisor teeth with identical root lengths and canal curvatures of less than 10 degrees were used. The teeth were randomly assigned to four experimental groups (n = 17) based on the instrument type: One-Shaped (25, 0.06), 2-Shaped (25, 0.04), Hyflex (25, 0.08), and Neoniti A1 (25, 0.08). Canal preparation was performed according to the manufacturer’s instructions for each file. Extruded debris was collected in pre-weighed vials, and after drying in an incubator, the amount of debris was determined by measuring the weight difference of the vials before and after preparation. Data were analyzed using SPSS 20, with a one-way analysis of covariance (ANOVA) and Tukey’s post hoc test at a significance level of 0.05. Results: The amount of extruded debris in the One-Shaped file was significantly higher than the extruded debris amount in Neoniti A1 (p = 0.049), Hyfex (p = 0.013), and the 2-Shaped file (p = 0.003). Conclusions: The null hypothesis was not invalidated due to significant differences in debris extrusion between the instruments observed in the present investigation. Within the limitations of the present study, the One-Shaped file was associated with higher debris extrusion due to the taper design and other system-specific characteristics. Clinical studies are required to assess whether these findings have an impact on the clinical outcome. |
| format | Article |
| id | doaj-art-51b4d74b11e741e397e443da9bf44e73 |
| institution | Kabale University |
| issn | 2692-3106 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Open Exploration Publishing Inc. |
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| series | Exploration of Medicine |
| spelling | doaj-art-51b4d74b11e741e397e443da9bf44e732025-08-22T08:08:16ZengOpen Exploration Publishing Inc.Exploration of Medicine2692-31062025-08-016100135110.37349/emed.2025.1001351A comparison of the apical extrusion of debris by tapering in rotary systems: in vitro experimental studyEshaghali Saberi0https://orcid.org/0000-0002-4832-0965Shima Bijari1https://orcid.org/0000-0002-5701-5081Farshid Gholami2https://orcid.org/0000-0001-9226-1459Ebrahim Mohtashami3https://orcid.org/0009-0001-6006-3199Forough Farahi4https://orcid.org/0000-0002-1258-0511Department of Endodontics, School of Dentistry, Oral and Dental Disease Research Center, Zahedan University of Medical Sciences, Zahedan 9817699693, IranDepartment of Endodontics, School of Dentistry, Birjand University of Medical Sciences, Birjand 9717434765, IranDepartment of Endodontics, School of Dentistry, Oral and Dental Disease Research Center, Zahedan University of Medical Sciences, Zahedan 9817699693, IranDepartment of Endodontics, School of Dentistry, Oral and Dental Disease Research Center, Zahedan University of Medical Sciences, Zahedan 9817699693, IranDepartment of Endodontics, School of Dentistry, Oral and Dental Disease Research Center, Zahedan University of Medical Sciences, Zahedan 9817699693, IranAim: Apical extrusion of debris during root canal preparation can lead to inflammation, flare-ups, and delayed recovery. Therefore, instrumentation techniques that minimize debris extrusion are crucial. This study aimed to compare the apical extrusion of debris by four single-file, full-sequence rotary systems with different tapers. Methods: In this in vitro study, 68 human maxillary lateral incisor teeth with identical root lengths and canal curvatures of less than 10 degrees were used. The teeth were randomly assigned to four experimental groups (n = 17) based on the instrument type: One-Shaped (25, 0.06), 2-Shaped (25, 0.04), Hyflex (25, 0.08), and Neoniti A1 (25, 0.08). Canal preparation was performed according to the manufacturer’s instructions for each file. Extruded debris was collected in pre-weighed vials, and after drying in an incubator, the amount of debris was determined by measuring the weight difference of the vials before and after preparation. Data were analyzed using SPSS 20, with a one-way analysis of covariance (ANOVA) and Tukey’s post hoc test at a significance level of 0.05. Results: The amount of extruded debris in the One-Shaped file was significantly higher than the extruded debris amount in Neoniti A1 (p = 0.049), Hyfex (p = 0.013), and the 2-Shaped file (p = 0.003). Conclusions: The null hypothesis was not invalidated due to significant differences in debris extrusion between the instruments observed in the present investigation. Within the limitations of the present study, the One-Shaped file was associated with higher debris extrusion due to the taper design and other system-specific characteristics. Clinical studies are required to assess whether these findings have an impact on the clinical outcome.https://www.explorationpub.com/uploads/Article/A1001351/1001351.pdfendodonticsroot canal preparationdental pulp cavity |
| spellingShingle | Eshaghali Saberi Shima Bijari Farshid Gholami Ebrahim Mohtashami Forough Farahi A comparison of the apical extrusion of debris by tapering in rotary systems: in vitro experimental study Exploration of Medicine endodontics root canal preparation dental pulp cavity |
| title | A comparison of the apical extrusion of debris by tapering in rotary systems: in vitro experimental study |
| title_full | A comparison of the apical extrusion of debris by tapering in rotary systems: in vitro experimental study |
| title_fullStr | A comparison of the apical extrusion of debris by tapering in rotary systems: in vitro experimental study |
| title_full_unstemmed | A comparison of the apical extrusion of debris by tapering in rotary systems: in vitro experimental study |
| title_short | A comparison of the apical extrusion of debris by tapering in rotary systems: in vitro experimental study |
| title_sort | comparison of the apical extrusion of debris by tapering in rotary systems in vitro experimental study |
| topic | endodontics root canal preparation dental pulp cavity |
| url | https://www.explorationpub.com/uploads/Article/A1001351/1001351.pdf |
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