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Srpski arhiv za celokupno lekarstvo
2018, vol. 146, br. 7-8, str. 372-377
Utvrđivanje opterećenja samovezujućeg kompozitnog cementa primenom metode 3D korelacije digitalnih slika
Mitrović Aleksandra D.a, Tanasić Ivan V.b, Mitrović Nenad R.a, Milošević Miloš S.c, Tihaček-Šojić Ljiljana Đ.b ORCID, Antonović Dušan G.d
aUniverzitet u Beogradu, Mašinski fakultet, Srbija
bUniverzitet u Beogradu, Stomatološki fakultet, Srbija
cUniverzitet u Beogradu, Mašinski fakultet, Inovacioni centar, Srbija
dUniverzitet u Beogradu, Tehnološko-metalurški fakultet, Srbija

e-adresa: aleksandramitrovic1926@gmail.com
Projekat:
Razvoj i primena metoda i laboratorijske opreme za ocenjivanje usaglašenosti tehničkih proizvoda (MPNTR - 35031)
Razvoj savremenih metoda dijagnostike i ispitivanja mašinskih struktura (MPNTR - 35040)

Ključne reči: samoadhezivni kompozitni cement; metoda 3D korelacije digitalnih slika; deformacija; polimerizacijska kontrakcija
Sažetak
Uvod/Cilj U nastojanju da se pojednostave stomatološke procedure uvedene su nove grupe kompozitnih cemenata - samoadhezivni, dvojnovezujući kompozitni cementi. Svojstva ovih cemenata mogu da variraju u velikoj meri. Jedan od glavnih razloga narušavanja adhezionih svojstava kompozitnih cemenata je polimerizacijska kontrakcija. Cilj ovog rada je da se odredi i izmeri deformaciono polje samoadhezivnog dvojnovezujućeg kompozitnog cementa tokom hemijske polimerizacije korišćenjem eksperimentalne tehnike - metode 3D korelacije digitalnih slika. Metode Samoadhezivni kompozitni cement Maxcem Elite (Kerr, Orange, SAD) ispitivan je na pet uzoraka prečnika 5 mm, debljine 2 mm, koji su pripremljeni punjenjem plastičnih kalupa prstenastog oblika. Digitalne slike su zabeležene neposredno posle pripreme uzoraka. Rezultati Neuniformno deformaciono polje je pokazalo veće vrednosti deformacija na periferiji uzoraka (do 15%) i manje vrednosti deformacija u centralnim delovima uzoraka (oko 4%). Zaključak Može se zaključiti da je 3D korelacija digitalnih slika precizna i pouzdana metoda za merenje deformacionih polja u oblasti karakterizacije materijala.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.2298/SARH170530176M
objavljen u SCIndeksu: 04.10.2018.

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