Radenković, Goran

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orcid::0000-0002-6901-9821
  • Radenković, Goran (2)
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Author's Bibliography

The examination of sensitivity to corrosion of nickel-titanium and stainless steel endodontic instruments in tooth root canal irrigating solutions

Popović, Jelena; Radenković, Goran; Gašić, Jovanka; Živković, Slavoljub; Mitić, Aleksandar; Nikolić, Marija; Barac, Radomir

(Savez hemijskih inženjera, Beograd, 2016)

TY  - JOUR
AU  - Popović, Jelena
AU  - Radenković, Goran
AU  - Gašić, Jovanka
AU  - Živković, Slavoljub
AU  - Mitić, Aleksandar
AU  - Nikolić, Marija
AU  - Barac, Radomir
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2144
AB  - The application of irrigating solutions is essential in chemomechanical treatment of tooth root canal. However, chemical and electrochemical aggressiveness of the solutions, which directly act on the instruments, may damage their surface. The aim of this study was to investigate the sensitivity of the nickel-titanium (Ni-Ti) and stainless steel endodontic files to corrosive action of the sodium hypochlorite (NaOCl), chlorhexidine gluconate (CHX) and ethylene-diamine tetraacetic acid (EDTA). Testing of sensitivity to corrosion of the instruments was performed by dynamic potentiometric method. Measurements were made in 5.25% NaOCl, 0.2% CHX and 17% EDTA. Ni-Ti instruments immersed in 5.25% NaOCl showed the most intensive corrosive changes and the lowest value of pitting potential of 1.1 V. Stainless steel instruments immersed in 5.25% NaOCl showed higher value of pitting potential of 1.5 V. Stainless steel instruments immersed in 0.2% CHX showed lower corrosive surface changes and higher value of pitting potential of 1.6 V, whereas Ni-Ti instruments immersed in 0.2% CHX showed the pitting potential of 1.9 V. The corrosion was not observed in both types of instruments after immersion in 17% EDTA. The use of 5.25% NaOCl and 0.2% CHX may cause severe surface corrosion of Ni-Ti and stainless steel endodontic files.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly / CICEQ
T1  - The examination of sensitivity to corrosion of nickel-titanium and stainless steel endodontic instruments in tooth root canal irrigating solutions
VL  - 22
IS  - 1
SP  - 95
EP  - 100
DO  - 10.2298/CICEQ150103023P
ER  - 
@article{
author = "Popović, Jelena and Radenković, Goran and Gašić, Jovanka and Živković, Slavoljub and Mitić, Aleksandar and Nikolić, Marija and Barac, Radomir",
year = "2016",
abstract = "The application of irrigating solutions is essential in chemomechanical treatment of tooth root canal. However, chemical and electrochemical aggressiveness of the solutions, which directly act on the instruments, may damage their surface. The aim of this study was to investigate the sensitivity of the nickel-titanium (Ni-Ti) and stainless steel endodontic files to corrosive action of the sodium hypochlorite (NaOCl), chlorhexidine gluconate (CHX) and ethylene-diamine tetraacetic acid (EDTA). Testing of sensitivity to corrosion of the instruments was performed by dynamic potentiometric method. Measurements were made in 5.25% NaOCl, 0.2% CHX and 17% EDTA. Ni-Ti instruments immersed in 5.25% NaOCl showed the most intensive corrosive changes and the lowest value of pitting potential of 1.1 V. Stainless steel instruments immersed in 5.25% NaOCl showed higher value of pitting potential of 1.5 V. Stainless steel instruments immersed in 0.2% CHX showed lower corrosive surface changes and higher value of pitting potential of 1.6 V, whereas Ni-Ti instruments immersed in 0.2% CHX showed the pitting potential of 1.9 V. The corrosion was not observed in both types of instruments after immersion in 17% EDTA. The use of 5.25% NaOCl and 0.2% CHX may cause severe surface corrosion of Ni-Ti and stainless steel endodontic files.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly / CICEQ",
title = "The examination of sensitivity to corrosion of nickel-titanium and stainless steel endodontic instruments in tooth root canal irrigating solutions",
volume = "22",
number = "1",
pages = "95-100",
doi = "10.2298/CICEQ150103023P"
}
Popović, J., Radenković, G., Gašić, J., Živković, S., Mitić, A., Nikolić, M.,& Barac, R.. (2016). The examination of sensitivity to corrosion of nickel-titanium and stainless steel endodontic instruments in tooth root canal irrigating solutions. in Chemical Industry & Chemical Engineering Quarterly / CICEQ
Savez hemijskih inženjera, Beograd., 22(1), 95-100.
https://doi.org/10.2298/CICEQ150103023P
Popović J, Radenković G, Gašić J, Živković S, Mitić A, Nikolić M, Barac R. The examination of sensitivity to corrosion of nickel-titanium and stainless steel endodontic instruments in tooth root canal irrigating solutions. in Chemical Industry & Chemical Engineering Quarterly / CICEQ. 2016;22(1):95-100.
doi:10.2298/CICEQ150103023P .
Popović, Jelena, Radenković, Goran, Gašić, Jovanka, Živković, Slavoljub, Mitić, Aleksandar, Nikolić, Marija, Barac, Radomir, "The examination of sensitivity to corrosion of nickel-titanium and stainless steel endodontic instruments in tooth root canal irrigating solutions" in Chemical Industry & Chemical Engineering Quarterly / CICEQ, 22, no. 1 (2016):95-100,
https://doi.org/10.2298/CICEQ150103023P . .
2
1

Ultrastructural analysis of the surface of endodontic instruments after immersion in irrigating solutions

Popović, Jelena; Radenković, Goran; Gašić, Jovanka; Mitić, Aleksandar; Nikolić, Marija; Barac, Radomir; Živković, Slavoljub

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2015)

TY  - JOUR
AU  - Popović, Jelena
AU  - Radenković, Goran
AU  - Gašić, Jovanka
AU  - Mitić, Aleksandar
AU  - Nikolić, Marija
AU  - Barac, Radomir
AU  - Živković, Slavoljub
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2026
AB  - Introduction Separation (fracture) of endodontic instruments in the root canal during chemomechanical instrumentation is a complication that can compromise the final outcome of endodontic treatment. One of the most common factors that cause fatigue of endodontic instruments and consequent fracture is surface corrosion. The aim of this study was to investigate the ultrastructure of surface corrosion of endodontic instruments made of stainless steel and nickel-titanium after immersion in the most commonly used root canal irrigants. Material and Methods The study included 48 nickel-titanium and stainless steel endodontic hand files. All instruments were immersed in 5.25% sodium hypochlorite, 0.2% CHX and 17% EDTA. Surface corrosion was analyzed using a scanning electron microscope (SEM). Results Nickel-titanium instruments showed significantly higher susceptibility to corrosion after immersion in 5.25% sodium hypochlorite compared to stainless steel instruments (p lt 0,001). After immersion in 0.2% CHX corrosion damage was observed on both nickel-titanium and stainless steel instruments but the difference was not statistically significant (p=0.096). No corrosion was observed in both types of instruments after immersion in 17% EDTA. Conclusion The use of 5.25% NaOCl and 0.2% CHX as root canal irrigating solutions can cause serious corrosion changes on the surface of nickel-titanium and stainless steel endodontic instruments.
AB  - Uvod Fraktura endodontskih instrumenata u kanalu korena tokom hemomehaničke preparacije je značajna komplikacija koja može ugroziti konačan ishod endodontskog lečenja. Jedan od važnih faktora koji izazivaju zamor materijala endodontskog instrumenta je površinska korozija. Cilj ovog rada je bio da se ispita ultrastruktura površine endodontskih instrumenata od nerđajućeg čelika i nikl-titanijuma nakon potapanja u najčešće upotrebljavane rastvore za irigaciju kanala korena zuba. Materijal i metode rada U istraživanju je korišćeno 48 instrumenata od nikl-titanijuma i nerđajućeg čelika. Testiranje osetljivosti na koroziju je izvršeno potapanjem u rastvore NaOCl od 5,25%, CHX od 0,2% i EDTA od 17%. Analiza korozivnih oštećenja je urađena pomoću skening elektronskog mikroskopa (SEM) na različitim uveličanjima. Rezultati Instrumenti od nikl-titanijuma su pokazali statistički značajno veću osetljivost na koroziju nakon potapanja u 5,25% NaOCl u poređenju sa instrumentima od nerđajućeg čelika (p lt 0,001). Nakon potapanja u 0,2% CHX uočeno je korozivno oštećenje instrumenata od nikl-titanijuma i nerđajućeg čelika, ali razlika nije bila statistički značajna. Korozija nakon potapanja u 17% EDTA nije uočena ni kod jedne vrste endodontskih instrumenata. Zaključak Primena 5,25% NaOCl i 0,2% CHX kao rastvora za irigaciju kanala korena može izazvati ozbiljne korozivne promene na površini instrumenata od nikl-titanijuma i nerđajućeg čelika.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Ultrastructural analysis of the surface of endodontic instruments after immersion in irrigating solutions
T1  - Ultrastrukturna analiza površine endodontskih instrumenata nakon potapanja u rastvore za irigaciju
VL  - 62
IS  - 4
SP  - 157
EP  - 165
DO  - 10.1515/sdj-2015-0016
ER  - 
@article{
author = "Popović, Jelena and Radenković, Goran and Gašić, Jovanka and Mitić, Aleksandar and Nikolić, Marija and Barac, Radomir and Živković, Slavoljub",
year = "2015",
abstract = "Introduction Separation (fracture) of endodontic instruments in the root canal during chemomechanical instrumentation is a complication that can compromise the final outcome of endodontic treatment. One of the most common factors that cause fatigue of endodontic instruments and consequent fracture is surface corrosion. The aim of this study was to investigate the ultrastructure of surface corrosion of endodontic instruments made of stainless steel and nickel-titanium after immersion in the most commonly used root canal irrigants. Material and Methods The study included 48 nickel-titanium and stainless steel endodontic hand files. All instruments were immersed in 5.25% sodium hypochlorite, 0.2% CHX and 17% EDTA. Surface corrosion was analyzed using a scanning electron microscope (SEM). Results Nickel-titanium instruments showed significantly higher susceptibility to corrosion after immersion in 5.25% sodium hypochlorite compared to stainless steel instruments (p lt 0,001). After immersion in 0.2% CHX corrosion damage was observed on both nickel-titanium and stainless steel instruments but the difference was not statistically significant (p=0.096). No corrosion was observed in both types of instruments after immersion in 17% EDTA. Conclusion The use of 5.25% NaOCl and 0.2% CHX as root canal irrigating solutions can cause serious corrosion changes on the surface of nickel-titanium and stainless steel endodontic instruments., Uvod Fraktura endodontskih instrumenata u kanalu korena tokom hemomehaničke preparacije je značajna komplikacija koja može ugroziti konačan ishod endodontskog lečenja. Jedan od važnih faktora koji izazivaju zamor materijala endodontskog instrumenta je površinska korozija. Cilj ovog rada je bio da se ispita ultrastruktura površine endodontskih instrumenata od nerđajućeg čelika i nikl-titanijuma nakon potapanja u najčešće upotrebljavane rastvore za irigaciju kanala korena zuba. Materijal i metode rada U istraživanju je korišćeno 48 instrumenata od nikl-titanijuma i nerđajućeg čelika. Testiranje osetljivosti na koroziju je izvršeno potapanjem u rastvore NaOCl od 5,25%, CHX od 0,2% i EDTA od 17%. Analiza korozivnih oštećenja je urađena pomoću skening elektronskog mikroskopa (SEM) na različitim uveličanjima. Rezultati Instrumenti od nikl-titanijuma su pokazali statistički značajno veću osetljivost na koroziju nakon potapanja u 5,25% NaOCl u poređenju sa instrumentima od nerđajućeg čelika (p lt 0,001). Nakon potapanja u 0,2% CHX uočeno je korozivno oštećenje instrumenata od nikl-titanijuma i nerđajućeg čelika, ali razlika nije bila statistički značajna. Korozija nakon potapanja u 17% EDTA nije uočena ni kod jedne vrste endodontskih instrumenata. Zaključak Primena 5,25% NaOCl i 0,2% CHX kao rastvora za irigaciju kanala korena može izazvati ozbiljne korozivne promene na površini instrumenata od nikl-titanijuma i nerđajućeg čelika.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Ultrastructural analysis of the surface of endodontic instruments after immersion in irrigating solutions, Ultrastrukturna analiza površine endodontskih instrumenata nakon potapanja u rastvore za irigaciju",
volume = "62",
number = "4",
pages = "157-165",
doi = "10.1515/sdj-2015-0016"
}
Popović, J., Radenković, G., Gašić, J., Mitić, A., Nikolić, M., Barac, R.,& Živković, S.. (2015). Ultrastructural analysis of the surface of endodontic instruments after immersion in irrigating solutions. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 62(4), 157-165.
https://doi.org/10.1515/sdj-2015-0016
Popović J, Radenković G, Gašić J, Mitić A, Nikolić M, Barac R, Živković S. Ultrastructural analysis of the surface of endodontic instruments after immersion in irrigating solutions. in Stomatološki glasnik Srbije. 2015;62(4):157-165.
doi:10.1515/sdj-2015-0016 .
Popović, Jelena, Radenković, Goran, Gašić, Jovanka, Mitić, Aleksandar, Nikolić, Marija, Barac, Radomir, Živković, Slavoljub, "Ultrastructural analysis of the surface of endodontic instruments after immersion in irrigating solutions" in Stomatološki glasnik Srbije, 62, no. 4 (2015):157-165,
https://doi.org/10.1515/sdj-2015-0016 . .
1