Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments
Нема приказа
Аутори
Jovanović-Medojević, MilicaDragičević, Aleksandra
Milanović, Ivana
Matija, Lidija
Živković, Slavoljub
Чланак у часопису (Објављена верзија)
,
© 2023 Elsevier Ltd
Метаподаци
Приказ свих података о документуАпстракт
Intra-canal fracture of rotary NiTi instruments occurs due to torsional stress, cyclic fatigue, or a combination of these two factors. Broken instruments are a serious obstacle to shaping, cleaning, and filling of the root canal and can adversely affect the outcome of endodontic therapy.
The aim of this study was to examine the magnetic properties and ultrastructural changes of new, used, and fractured NiTi instruments using opto-magnetic imaging spectroscopy (OMIS). The study included three sets of different types of rotary instruments: MTwo (VDW, Munich, Germany), Pro Taper Universal (Dentsply Maillefer, Ballaigues, Switzerland), and BioRace (FKG DENTAIRE Swiss Dental Products, Le Crêt-du-Locle Switzerland). Root canal shaping was performed on root canals with different curvatures, and after intra-canal fracture, instruments of the same type (new, used, and fractured) were analyzed using OMIS at the Faculty of Mechanical Engineering, University of Belgrade.
The obtained results s...howed a coincidence of peak localization for the used instruments that did not suffer a fracture, as well as for new, unused instruments of all examined groups. Additionally, there was a coincidence of peak intensities for new and fractured instruments in all groups. The specific treatment of electropolishing of the active surface of BioRace instruments caused a completely different electromagnetic response compared to conventional NiTi sets of tested instruments. New, unused BioRace instruments had the most pronounced positive (5.6078 n.a.u. x1000) and negative (−8.5218 n.a.u. x1000) intensity values.
The analysis of NiTi instruments using opto-magnetic imaging spectroscopy indicated changes in the magnetic properties after their instrumentation.
Кључне речи:
NiTi instruments / Fractures of NiTi instruments / OMISИзвор:
Journal of the Mechanical Behavior of Biomedical Materials, 2023, 141, May, 105789-Издавач:
- © 2023 Elsevier Ltd
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200105 (Универзитет у Београду, Машински факултет) (RS-MESTD-inst-2020-200105)
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Jovanović-Medojević, Milica AU - Dragičević, Aleksandra AU - Milanović, Ivana AU - Matija, Lidija AU - Živković, Slavoljub PY - 2023 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6682 AB - Intra-canal fracture of rotary NiTi instruments occurs due to torsional stress, cyclic fatigue, or a combination of these two factors. Broken instruments are a serious obstacle to shaping, cleaning, and filling of the root canal and can adversely affect the outcome of endodontic therapy. The aim of this study was to examine the magnetic properties and ultrastructural changes of new, used, and fractured NiTi instruments using opto-magnetic imaging spectroscopy (OMIS). The study included three sets of different types of rotary instruments: MTwo (VDW, Munich, Germany), Pro Taper Universal (Dentsply Maillefer, Ballaigues, Switzerland), and BioRace (FKG DENTAIRE Swiss Dental Products, Le Crêt-du-Locle Switzerland). Root canal shaping was performed on root canals with different curvatures, and after intra-canal fracture, instruments of the same type (new, used, and fractured) were analyzed using OMIS at the Faculty of Mechanical Engineering, University of Belgrade. The obtained results showed a coincidence of peak localization for the used instruments that did not suffer a fracture, as well as for new, unused instruments of all examined groups. Additionally, there was a coincidence of peak intensities for new and fractured instruments in all groups. The specific treatment of electropolishing of the active surface of BioRace instruments caused a completely different electromagnetic response compared to conventional NiTi sets of tested instruments. New, unused BioRace instruments had the most pronounced positive (5.6078 n.a.u. x1000) and negative (−8.5218 n.a.u. x1000) intensity values. The analysis of NiTi instruments using opto-magnetic imaging spectroscopy indicated changes in the magnetic properties after their instrumentation. PB - © 2023 Elsevier Ltd T2 - Journal of the Mechanical Behavior of Biomedical Materials T1 - Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments IS - May SP - 105789 VL - 141 DO - 10.1016/j.jmbbm.2023.105789 ER -
@article{ author = "Jovanović-Medojević, Milica and Dragičević, Aleksandra and Milanović, Ivana and Matija, Lidija and Živković, Slavoljub", year = "2023", abstract = "Intra-canal fracture of rotary NiTi instruments occurs due to torsional stress, cyclic fatigue, or a combination of these two factors. Broken instruments are a serious obstacle to shaping, cleaning, and filling of the root canal and can adversely affect the outcome of endodontic therapy. The aim of this study was to examine the magnetic properties and ultrastructural changes of new, used, and fractured NiTi instruments using opto-magnetic imaging spectroscopy (OMIS). The study included three sets of different types of rotary instruments: MTwo (VDW, Munich, Germany), Pro Taper Universal (Dentsply Maillefer, Ballaigues, Switzerland), and BioRace (FKG DENTAIRE Swiss Dental Products, Le Crêt-du-Locle Switzerland). Root canal shaping was performed on root canals with different curvatures, and after intra-canal fracture, instruments of the same type (new, used, and fractured) were analyzed using OMIS at the Faculty of Mechanical Engineering, University of Belgrade. The obtained results showed a coincidence of peak localization for the used instruments that did not suffer a fracture, as well as for new, unused instruments of all examined groups. Additionally, there was a coincidence of peak intensities for new and fractured instruments in all groups. The specific treatment of electropolishing of the active surface of BioRace instruments caused a completely different electromagnetic response compared to conventional NiTi sets of tested instruments. New, unused BioRace instruments had the most pronounced positive (5.6078 n.a.u. x1000) and negative (−8.5218 n.a.u. x1000) intensity values. The analysis of NiTi instruments using opto-magnetic imaging spectroscopy indicated changes in the magnetic properties after their instrumentation.", publisher = "© 2023 Elsevier Ltd", journal = "Journal of the Mechanical Behavior of Biomedical Materials", title = "Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments", number = "May", pages = "105789", volume = "141", doi = "10.1016/j.jmbbm.2023.105789" }
Jovanović-Medojević, M., Dragičević, A., Milanović, I., Matija, L.,& Živković, S.. (2023). Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments. in Journal of the Mechanical Behavior of Biomedical Materials © 2023 Elsevier Ltd., 141(May), 105789. https://doi.org/10.1016/j.jmbbm.2023.105789
Jovanović-Medojević M, Dragičević A, Milanović I, Matija L, Živković S. Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments. in Journal of the Mechanical Behavior of Biomedical Materials. 2023;141(May):105789. doi:10.1016/j.jmbbm.2023.105789 .
Jovanović-Medojević, Milica, Dragičević, Aleksandra, Milanović, Ivana, Matija, Lidija, Živković, Slavoljub, "Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments" in Journal of the Mechanical Behavior of Biomedical Materials, 141, no. May (2023):105789, https://doi.org/10.1016/j.jmbbm.2023.105789 . .