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2021, vol. 68, br. 1, str. 19-30
Karakteristike površine novih rotirajućih nikl-titanijumskih instrumenata - SEM-EDS analiza
aUniverzitet u Beogradu, Stomatološki fakultet
bUniverzitet u Beogradu, Rudarsko-geološki fakultet

e-adresamedojevic.milica@gmail.com
Ključne reči: Ni-Ti instrumenti; proizvodni defekti; SEM-EDS
Sažetak
Uvod Moderna endodontska procedura podrazumeva upotrebu mašinskih rotirajućih Ni-Ti instrumenata tokom hemomehaničke obrade kanala korena. Cilj ovog rada je bio da se primenom SEM-EDS metode analiziraju površine novih (neupotrebljenih) rotirajućih endodontskih instrumenata i utvrdi učestalost pojave proizvodnih defekata ili nečistoća na njihovim radnim površinama. Materijal i metoda U istraživanje je uključeno pet različitih novih setova mašinskih endodontskih Ni-Ti instrumenata: K3, Mtwo, ProTaper Universal, HyFlex i BioRaCe. Radni deo svakog instrumenta je podvrgnut SEM-EDS analizi (uvećanja ×150 do ×2000), čime su utvrđene morfološke karakteristike površine instrumenata i hemijski sastav zatečenih nečistoća. Statistička analiza je urađena primenom Fišer testa (p < 0,05). Rezultati Rezultati SEM-EDS analize su pokazali da ne postoji nijedan novi instrument bez defekta na svojoj površini. Najučestaliji defekti su uočeni kod K3 (27,43%) i ProTaper Universal grupe (27,21%), a najmanje ih je bilo na BioRaCe instrumentima (7,67%). Najzastupljeniji tip defekata kod testiranih instrumenata je bilo prisustvo žljebova. Osim toga, utvrđeno je i prisustvo debrisa i metalnih opiljaka na svim instrumentima, dok je korozija radnog dela primećena samo kod K3, ProTaper Universal i Mtwo sistema u malom procentu. Zaključak Na osnovu rezultata ovog istraživanja može se zaključiti da su na svim ispitivanim instrumentima uočeni proizvodni defekti, od kojih su najzastupljeniji žljebovi. Takođe su registrovane i nečistoće kao što su debrisa i metalni opiljci. Na elektropoliranoj površini BioRaCe instrumenata nije uočeno prisustvo organskog debrisa, ali je registrovan Mali procenat ostalih tipova defekata.
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O članku

jezik rada: engleski, srpski
vrsta rada: izvorni naučni članak
DOI: 10.2298/SGS2101019J
primljen: 16.12.2020.
prihvaćen: 24.02.2021.
objavljen u SCIndeksu: 13.05.2021.
Creative Commons License 4.0

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