Sem analysis of working surface in new manual endodontic instruments
SEM analiza površine radnog dela novih ručnih endodontskih instrumenata
Аутори
Jovanović-Medojević, MilicaPelemiš, Martina
Nešković, Jelena
Popović-Bajić, Marijana
Stratimirović, Đorđe
Živković, Slavoljub
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Introduction. The aim of this study was to analyze working surfaces of new hand endodontic instruments and to check possible existence of dirt or defects on working surface that resulted from manufacturing process using SEM. Material and methods. Three sets of new hand instruments: K-File (KF), (18 instruments) (Dentsply Maillefer, Switzerland) and Hedstorm Files (HF), (18 instruments) (SybronEndo Co, USA) were used. Instruments were analyzed by SEM method at 170× magnification while semi-quantitative EDS analysis was used to determine chemical composition of dirt particles. Fisher test (p < 0.05) was applied in statistical analysis. Results. Results showed that none of the instruments was defect-free. The most common defects were metal strips and fretting noticed at the surface of all tested instruments. Debris was present on all KF (100% in apical and middle third) and HF (56% in apical and 56% in middle third) instruments. Pitting was noticed in KF (33% in apical and 39% in middle t...hird) and HF (11% in apical and 6% in middle third) instruments. Corrosion of working surface, metal flash and disruption of cutting edge were marked only in KF group. Conclusion. Manufacturing defects were noticed in all instruments and the most common type of irregularity were metal strips and fretting.
Uvod Cilj ovog rada je bio da se primenom skenirajuće elektronske mikroskopije analiziraju površine novih ručnih endodontskih instrumenata i proveri eventualno postojanje proizvodnih nečistoća ili defekata na radnom delu. Materijal i metod U istraživanju su korišćena po tri seta novih ručnih instrumenata: K-File (KF), (18 instrumenata) (Dentsply Maillefer, Switzerland) i Hedstorm Files (HF), (18 instrumenata) (SybronEndo Co, USA). Instrumenti su podvrgnuti SEM analizi sa uvećanjem 170×, a semikvantitativnom EDXS analizom utvrđivan je hemijski sastav nečistoće. Statistička analiza je urađena primenom Fišerovog testa (p < 0,05). Rezultati Rezultati su pokazali da ne postoji nijedan instrument bez defekta. Najučestaliji tip defekta je bilo prisustvo metalnih opiljaka i žlebova, koji su uočeni na površini svih ispitivanih instrumenata. Debri je uočen na svim KF (100% apikalno i u srednjoj trećini) i HF (56% apikalno i 56% u srednjoj trećini). Prisustvo udubljenja zabeleženo je kod KF (33% ...apikalno i 39% u srednjoj trećini) i HF (11% apikalno i 6% u srednjoj trećini). Korozija radne površine, pojava uglačane površine i prekid sečivne ivice su uočeni samo u grupi KF. Zaključak Na svim ispitivanim ručnim instrumentima su uočeni proizvodni defekti, a najučestaliji tip nepravilnosti je bilo prisustvo metalnih opiljaka i žlebova.
Кључне речи:
stainless-steel hand endodontic instruments / defects / debris / čelični ručni endodontski instrumenti / defekti / debris / SEMИзвор:
Stomatološki glasnik Srbije, 2020, 67, 1, 15-26Издавач:
- Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
Колекције
Институција/група
Stomatološki fakultetTY - JOUR AU - Jovanović-Medojević, Milica AU - Pelemiš, Martina AU - Nešković, Jelena AU - Popović-Bajić, Marijana AU - Stratimirović, Đorđe AU - Živković, Slavoljub PY - 2020 UR - https://smile.stomf.bg.ac.rs/handle/123456789/3278 AB - Introduction. The aim of this study was to analyze working surfaces of new hand endodontic instruments and to check possible existence of dirt or defects on working surface that resulted from manufacturing process using SEM. Material and methods. Three sets of new hand instruments: K-File (KF), (18 instruments) (Dentsply Maillefer, Switzerland) and Hedstorm Files (HF), (18 instruments) (SybronEndo Co, USA) were used. Instruments were analyzed by SEM method at 170× magnification while semi-quantitative EDS analysis was used to determine chemical composition of dirt particles. Fisher test (p < 0.05) was applied in statistical analysis. Results. Results showed that none of the instruments was defect-free. The most common defects were metal strips and fretting noticed at the surface of all tested instruments. Debris was present on all KF (100% in apical and middle third) and HF (56% in apical and 56% in middle third) instruments. Pitting was noticed in KF (33% in apical and 39% in middle third) and HF (11% in apical and 6% in middle third) instruments. Corrosion of working surface, metal flash and disruption of cutting edge were marked only in KF group. Conclusion. Manufacturing defects were noticed in all instruments and the most common type of irregularity were metal strips and fretting. AB - Uvod Cilj ovog rada je bio da se primenom skenirajuće elektronske mikroskopije analiziraju površine novih ručnih endodontskih instrumenata i proveri eventualno postojanje proizvodnih nečistoća ili defekata na radnom delu. Materijal i metod U istraživanju su korišćena po tri seta novih ručnih instrumenata: K-File (KF), (18 instrumenata) (Dentsply Maillefer, Switzerland) i Hedstorm Files (HF), (18 instrumenata) (SybronEndo Co, USA). Instrumenti su podvrgnuti SEM analizi sa uvećanjem 170×, a semikvantitativnom EDXS analizom utvrđivan je hemijski sastav nečistoće. Statistička analiza je urađena primenom Fišerovog testa (p < 0,05). Rezultati Rezultati su pokazali da ne postoji nijedan instrument bez defekta. Najučestaliji tip defekta je bilo prisustvo metalnih opiljaka i žlebova, koji su uočeni na površini svih ispitivanih instrumenata. Debri je uočen na svim KF (100% apikalno i u srednjoj trećini) i HF (56% apikalno i 56% u srednjoj trećini). Prisustvo udubljenja zabeleženo je kod KF (33% apikalno i 39% u srednjoj trećini) i HF (11% apikalno i 6% u srednjoj trećini). Korozija radne površine, pojava uglačane površine i prekid sečivne ivice su uočeni samo u grupi KF. Zaključak Na svim ispitivanim ručnim instrumentima su uočeni proizvodni defekti, a najučestaliji tip nepravilnosti je bilo prisustvo metalnih opiljaka i žlebova. PB - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd T2 - Stomatološki glasnik Srbije T1 - Sem analysis of working surface in new manual endodontic instruments T1 - SEM analiza površine radnog dela novih ručnih endodontskih instrumenata VL - 67 IS - 1 SP - 15 EP - 26 DO - 10.2298/SGS2001015J ER -
@article{ author = "Jovanović-Medojević, Milica and Pelemiš, Martina and Nešković, Jelena and Popović-Bajić, Marijana and Stratimirović, Đorđe and Živković, Slavoljub", year = "2020", abstract = "Introduction. The aim of this study was to analyze working surfaces of new hand endodontic instruments and to check possible existence of dirt or defects on working surface that resulted from manufacturing process using SEM. Material and methods. Three sets of new hand instruments: K-File (KF), (18 instruments) (Dentsply Maillefer, Switzerland) and Hedstorm Files (HF), (18 instruments) (SybronEndo Co, USA) were used. Instruments were analyzed by SEM method at 170× magnification while semi-quantitative EDS analysis was used to determine chemical composition of dirt particles. Fisher test (p < 0.05) was applied in statistical analysis. Results. Results showed that none of the instruments was defect-free. The most common defects were metal strips and fretting noticed at the surface of all tested instruments. Debris was present on all KF (100% in apical and middle third) and HF (56% in apical and 56% in middle third) instruments. Pitting was noticed in KF (33% in apical and 39% in middle third) and HF (11% in apical and 6% in middle third) instruments. Corrosion of working surface, metal flash and disruption of cutting edge were marked only in KF group. Conclusion. Manufacturing defects were noticed in all instruments and the most common type of irregularity were metal strips and fretting., Uvod Cilj ovog rada je bio da se primenom skenirajuće elektronske mikroskopije analiziraju površine novih ručnih endodontskih instrumenata i proveri eventualno postojanje proizvodnih nečistoća ili defekata na radnom delu. Materijal i metod U istraživanju su korišćena po tri seta novih ručnih instrumenata: K-File (KF), (18 instrumenata) (Dentsply Maillefer, Switzerland) i Hedstorm Files (HF), (18 instrumenata) (SybronEndo Co, USA). Instrumenti su podvrgnuti SEM analizi sa uvećanjem 170×, a semikvantitativnom EDXS analizom utvrđivan je hemijski sastav nečistoće. Statistička analiza je urađena primenom Fišerovog testa (p < 0,05). Rezultati Rezultati su pokazali da ne postoji nijedan instrument bez defekta. Najučestaliji tip defekta je bilo prisustvo metalnih opiljaka i žlebova, koji su uočeni na površini svih ispitivanih instrumenata. Debri je uočen na svim KF (100% apikalno i u srednjoj trećini) i HF (56% apikalno i 56% u srednjoj trećini). Prisustvo udubljenja zabeleženo je kod KF (33% apikalno i 39% u srednjoj trećini) i HF (11% apikalno i 6% u srednjoj trećini). Korozija radne površine, pojava uglačane površine i prekid sečivne ivice su uočeni samo u grupi KF. Zaključak Na svim ispitivanim ručnim instrumentima su uočeni proizvodni defekti, a najučestaliji tip nepravilnosti je bilo prisustvo metalnih opiljaka i žlebova.", publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd", journal = "Stomatološki glasnik Srbije", title = "Sem analysis of working surface in new manual endodontic instruments, SEM analiza površine radnog dela novih ručnih endodontskih instrumenata", volume = "67", number = "1", pages = "15-26", doi = "10.2298/SGS2001015J" }
Jovanović-Medojević, M., Pelemiš, M., Nešković, J., Popović-Bajić, M., Stratimirović, Đ.,& Živković, S.. (2020). Sem analysis of working surface in new manual endodontic instruments. in Stomatološki glasnik Srbije Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 67(1), 15-26. https://doi.org/10.2298/SGS2001015J
Jovanović-Medojević M, Pelemiš M, Nešković J, Popović-Bajić M, Stratimirović Đ, Živković S. Sem analysis of working surface in new manual endodontic instruments. in Stomatološki glasnik Srbije. 2020;67(1):15-26. doi:10.2298/SGS2001015J .
Jovanović-Medojević, Milica, Pelemiš, Martina, Nešković, Jelena, Popović-Bajić, Marijana, Stratimirović, Đorđe, Živković, Slavoljub, "Sem analysis of working surface in new manual endodontic instruments" in Stomatološki glasnik Srbije, 67, no. 1 (2020):15-26, https://doi.org/10.2298/SGS2001015J . .