Comparative Evaluation of Different Techniques and Devices for Removal of Intra Canal Separated Instruments with Different Lengths (An In Vitro Study)
bialy, M., El shazli, A., Osama, M., El Hakim, A., Ibrahim, M., Badr, A. (2024). Comparative Evaluation of Different Techniques and Devices for Removal of Intra Canal Separated Instruments with Different Lengths (An In Vitro Study). EKB Journal Management System, 36(4), 12-19. doi: 10.21608/asdj.2024.309447.1419
mohamed fathy bialy; Alaa Helmi El shazli; Mohammad Osama; Ahmed El Hakim; Mohamed Mahmoud Ibrahim; Amany Elsaid Badr. "Comparative Evaluation of Different Techniques and Devices for Removal of Intra Canal Separated Instruments with Different Lengths (An In Vitro Study)". EKB Journal Management System, 36, 4, 2024, 12-19. doi: 10.21608/asdj.2024.309447.1419
bialy, M., El shazli, A., Osama, M., El Hakim, A., Ibrahim, M., Badr, A. (2024). 'Comparative Evaluation of Different Techniques and Devices for Removal of Intra Canal Separated Instruments with Different Lengths (An In Vitro Study)', EKB Journal Management System, 36(4), pp. 12-19. doi: 10.21608/asdj.2024.309447.1419
bialy, M., El shazli, A., Osama, M., El Hakim, A., Ibrahim, M., Badr, A. Comparative Evaluation of Different Techniques and Devices for Removal of Intra Canal Separated Instruments with Different Lengths (An In Vitro Study). EKB Journal Management System, 2024; 36(4): 12-19. doi: 10.21608/asdj.2024.309447.1419

Comparative Evaluation of Different Techniques and Devices for Removal of Intra Canal Separated Instruments with Different Lengths (An In Vitro Study)

Ain Shams Dental Journal
Volume 36, Issue 4, December 2024, Page 12-19  XML PDF (1.12 MB)
Document Type: Original articles
DOI: 10.21608/asdj.2024.309447.1419
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Authors
mohamed fathy bialy email orcid 1; Alaa Helmi El shazliorcid 1; Mohammad Osamaorcid 2; Ahmed El Hakimorcid 3; Mohamed Mahmoud Ibrahimorcid 4; Amany Elsaid Badrorcid 5
1Endodontic department faculty of dentistry Mansoura university
2Endodontic department ,faculty of dentistry ,Mansoura university
3Department of Endodontic, Faculty of Dentistry, Mansoura University
4Lecturer of endodontics, Mansoura University
5Head of the Department of Endodontics, Faculty of Dentistry, Mansoura University.
Abstract
Aim: To evaluate the success rate, retrieval time, and root canal volume changes after retrieval of long and short-separated instruments using Zumax retrieval kit, BTR pen, and ultrasonic.
Materials and Methods: Ninety Race rotary files #30/.04 were intentionally separated apically in the mesiobuccal canals of mandibular molars. Samples were divided into three groups (n=30) according to instrument retrieval device; Group (1) Zumax kit, Group (2) BTR pen, and Group (3) Ultrasonic. Each group was subdivided into two subgroups (n=15) according to the length of the separated files ;3 mm or 6 mm. CBCT scans were performed before and after retrieval to evaluate dentine volume changes. Chi-square and two-way ANOVA tests at a level of significance of 0.05 analyzed the data.
Results: No significant differences were detected among the three groups regarding the success rate (P>0.05). Ultrasonic required significantly more time than Zumax kit and BTR during retrieving the long fragments(P<0.05). BTR pen required more time significantly than ultrasonic and Zumax kit to retrieve the short fragments(P<0.05). The volume of the removed dentine was significantly higher utilizing Zumax kit than BTR pen and ultrasonic(P<0.05). Zumax kit removed more dentine significantly while retrieving short fragments.
Conclusion: Within the limitation of the present study, BTR pen provided a more conservative method for retrieving long-separated instruments, while ultrasonic technique could be used solely in the retrieval of short-separated fragments for more conservative instrument retrieval. Zumax retrieval kit removed more dentine, especially with short fragments.
Keywords
Broken instrument; dentine loss; instrument retrieval; ultrasonics
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