Effect of sterilization on the cutting efficiency of two different rotary NiTi instruments (An In- vitro Study)

Abstract Background Dental rotary instruments can be applied under multiple canal conditions. This study assessed the performance of two batches of NiTi dental rotary files—Mani Jizai (Jz) and Dentsply ProTaper Next (PTN)—by evaluating their cutting efficiency. Methods A total of 80 files (40 from e...

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Main Authors: Merna Mamdouh Botros, Kariem Mostafa ElBatouty, Tariq Yehia Abdelrahman
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Oral Health
Subjects:
Online Access:https://doi.org/10.1186/s12903-025-06534-w
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author Merna Mamdouh Botros
Kariem Mostafa ElBatouty
Tariq Yehia Abdelrahman
author_facet Merna Mamdouh Botros
Kariem Mostafa ElBatouty
Tariq Yehia Abdelrahman
author_sort Merna Mamdouh Botros
collection DOAJ
description Abstract Background Dental rotary instruments can be applied under multiple canal conditions. This study assessed the performance of two batches of NiTi dental rotary files—Mani Jizai (Jz) and Dentsply ProTaper Next (PTN)—by evaluating their cutting efficiency. Methods A total of 80 files (40 from each type), with 8x digital microscope magnification used for defect inspection, were tested half of which before and the other half after sterilization. The sample size was tested in extracted upper molars’ distobuccal (DB) roots to assess cutting efficiency by volumetric changes showing removed dentin volume. Results The Results indicated that the sterilized PTN files performed better at 5 mm, but no significant differences were noted at 10 mm between all file groups. At 15 mm, the performance of sterilized PTN files was inferior to that of non-sterilized Jz files. Conclusion Sterilization and heat treatment affect file cutting efficiency by volumetric changes, especially at the coronal and apical one-thirds.
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spelling doaj-art-7f069fb49a404de88f899aef59de5d6a2025-08-20T03:06:39ZengBMCBMC Oral Health1472-68312025-07-012511810.1186/s12903-025-06534-wEffect of sterilization on the cutting efficiency of two different rotary NiTi instruments (An In- vitro Study)Merna Mamdouh Botros0Kariem Mostafa ElBatouty1Tariq Yehia Abdelrahman2Endodontics, Faculty of Dentistry, Ain Shams UniversityEndodontics, Faculty of Dentistry, Ain Shams UniversityEndodontics, Faculty of Dentistry, Ain Shams UniversityAbstract Background Dental rotary instruments can be applied under multiple canal conditions. This study assessed the performance of two batches of NiTi dental rotary files—Mani Jizai (Jz) and Dentsply ProTaper Next (PTN)—by evaluating their cutting efficiency. Methods A total of 80 files (40 from each type), with 8x digital microscope magnification used for defect inspection, were tested half of which before and the other half after sterilization. The sample size was tested in extracted upper molars’ distobuccal (DB) roots to assess cutting efficiency by volumetric changes showing removed dentin volume. Results The Results indicated that the sterilized PTN files performed better at 5 mm, but no significant differences were noted at 10 mm between all file groups. At 15 mm, the performance of sterilized PTN files was inferior to that of non-sterilized Jz files. Conclusion Sterilization and heat treatment affect file cutting efficiency by volumetric changes, especially at the coronal and apical one-thirds.https://doi.org/10.1186/s12903-025-06534-wNiTiRotary filesSterilizationCutting efficiency
spellingShingle Merna Mamdouh Botros
Kariem Mostafa ElBatouty
Tariq Yehia Abdelrahman
Effect of sterilization on the cutting efficiency of two different rotary NiTi instruments (An In- vitro Study)
BMC Oral Health
NiTi
Rotary files
Sterilization
Cutting efficiency
title Effect of sterilization on the cutting efficiency of two different rotary NiTi instruments (An In- vitro Study)
title_full Effect of sterilization on the cutting efficiency of two different rotary NiTi instruments (An In- vitro Study)
title_fullStr Effect of sterilization on the cutting efficiency of two different rotary NiTi instruments (An In- vitro Study)
title_full_unstemmed Effect of sterilization on the cutting efficiency of two different rotary NiTi instruments (An In- vitro Study)
title_short Effect of sterilization on the cutting efficiency of two different rotary NiTi instruments (An In- vitro Study)
title_sort effect of sterilization on the cutting efficiency of two different rotary niti instruments an in vitro study
topic NiTi
Rotary files
Sterilization
Cutting efficiency
url https://doi.org/10.1186/s12903-025-06534-w
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AT kariemmostafaelbatouty effectofsterilizationonthecuttingefficiencyoftwodifferentrotarynitiinstrumentsaninvitrostudy
AT tariqyehiaabdelrahman effectofsterilizationonthecuttingefficiencyoftwodifferentrotarynitiinstrumentsaninvitrostudy