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2014, vol. 53, br. 2, str. 5-9
Uporedna analiza apsorpcije vode od strane različitih akrilatnih materijala
aUniverzitet u Nišu, Medicinski fakultet + Univerzitet u Nišu, Medicinski fakultet, Stomatološka klinika
bUniverzitet u Nišu, Medicinski fakultet

e-adresakosticmilena@sbb.rs
Ključne reči: akrilatni materijali; vodena apsorpcija
Sažetak
Akrilatni materijali se svakodnevno koriste za izradu mobilnih zubnih nadoknada i ortodontskih aparata. Prisustvo rezidualnog monomera, kao proizvoda nepotpune polimerizacije materijala, dovodi do poroznije strukture materijala, što bitno smanjuje mehaničko-fizički kvalitet akrilatnih nadoknada i povećava apsorpciju tečnosti. Cilj rada bio je ispitivanje vodene apsorpcije različitih tipova akrilatnih materijala. U istraživanju se pošlo od pretpostavke da hladni polimerizovani akrilati pokazuju veći potencijal za apsorpciju tečnosti iz okruženja u odnosu na toplo polimerizovane akrilate. Ispitivanje je obuhvatilo dva toplo i dva hladno polimerizovana akrilata, kao i hladno polimerizovani akrilat impregniran estetskim perlama. U cilju određivanja stepena vodene apsorpcije merena je masa uzoraka pre i nakon jednodnevnog, sedmodnevnog i tridesetodnevnog potapanja u vodeno kupatilo telesne temperature. Ispitivani toplo i hladno polimerizovani akrilati su nakon potapanja u vodeno kupatilo pokazali standardne vrednosti vodene apsorpcije. Stepen vodene apsorpcije nije značajno zavisio od vrste i načina polimerizacije materijala. Vrednosti vodene apsorpcije bile su značajno veće nakon sedmodnevnog i tridesetodnevnog potapanja u vodu u odnosu na jednodnevni opservacioni period.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5633/amm.2014.0201
objavljen u SCIndeksu: 04.07.2015.