Fogászati kompozit tömőanyagok nanoindentációs keménységi vizsgálata

MAJA LAURA JARÁBIK; ANDRÁS JAKAB; TAMÁS TARJÁNYI; RÓBERT JURÁK; GÁBOR GULYÁS; MÁRTON SÁMI; KRISZTIÁN BALI; KRISZTIÁN BALI; MÁRK DR. FRÁTER

doi:10.33891/https://doi.org/10.33891/FSZ.118.2.47-52

MAJA LAURA JARÁBIK
ANDRÁS JAKAB
TAMÁS TARJÁNYI
RÓBERT JURÁK
GÁBOR GULYÁS
MÁRTON SÁMI
KRISZTIÁN BALI
KRISZTIÁN BALI
MÁRK DR. FRÁTER

DOI: https://doi.org/10.33891/https://doi.org/10.33891/FSZ.118.2.47-52

Kulcsszavak: bulk technika, rétegzett tömés, rövid üvegszál megerősítésű kompozit, keménység, hagyományos kompozit

Absztrakt

Bevezetés: A rövid üvegszál megerősítésű kompozitok (SFRC-k) ígéretes alternatívát kínálnak a mély, magas volumenfaktorú
kavitások helyreállítására. Vizsgálatunk célja a folyékony SFRC anyag felszíni keménységének meghatározása
különböző tömési technikák mellett nanoindentáció segítségével.
Anyag és módszer: Négy csoportban (n = 18 / csoport) különböző tömési technikával készült kompozit mintákat vizsgáltunk:
rétegzett hagyományos kompozit, rétegzett SFRC, bulk-fill SFRC és bulk-fill kompozit. A minták keménységét
azok tetején, oldalán és alján mértük nanoindentációval, vízben tárolás előtt és után.
Eredmények: A bulk-fill kompozit csoport szignifikánsan alacsonyabb keménységi értékeket mutatott minden mérési
szinten. Az SFRC minták – rétegzett és bulk technikával egyaránt – magasabb vagy hasonló keménységet produkáltak
a hagyományos kompozithoz képest.
Következtetések: Az SFRC anyag alkalmazása klinikailag releváns alternatívát jelenthet a mély kavitások helyreállításában,
mivel megfelelő keménységet biztosít különböző tömési technikák mellett is.

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