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2015, vol. 62, br. 4, str. 157-165
Ultrastrukturna analiza površine endodontskih instrumenata nakon potapanja u rastvore za irigaciju
aUniverzitet u Nišu, Medicinski fakultet, Stomatološka klinika
bUniverzitet u Nišu, Mašinski fakultet, Katedra Proizvodno informacione tehnologije i menadžment
cUniverzitet u Beogradu, Stomatološki fakultet, Klinika za bolesti zuba i endodonciju

e-adresajelenadp@gmail.com
Sažetak
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<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.
Reference
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O članku

jezik rada: srpski, engleski
vrsta rada: originalan članak
DOI: 10.1515/sdj-2015-0016
objavljen u SCIndeksu: 13.03.2016.

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