Naslov
Mechanical properties and water sorption of two experimental glass ionomer cements with hydroxyapatite or calcium fluorapatite formulation

Autori
Bilge Kutuk, Zeynep ; Koc Vural, Uzay ; Yalcin Cakir, Filiz ; Miletić, Ivana ; Gurgan Sevil

Izvornik
Dental materials journal (0287-4547) 38 (2019), 3; 471-479

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Glass ionomer cement ; Hydroxyapatite ; Fluorapatite ; Calcium fluorapatite ; Mechanical properties

Sažetak
In this study the mechanical behavior and water sorption (Ws) of experimental glass-ionomer-cements (GICs) with hydroxyapatite (HA) or calcium fluorapatite (CFA) prototype formulations were examined. Specimens from two experimental and one commercially available GIC were prepared in three protocols ; (1) according to the manufacturer’s instructions, (2) with coating and (3) with heat application. The specimens were stored in distilled water or artificial saliva at 37°C for 7- and 30-days. Flexural strength (FS), Vickers hardness (VHN) and Ws of GICs were evaluated. Experimental GICs showed higher FS values than commercial GIC (p<0.001). Higher FS and VHN values were observed when GICs were prepared according to manufacturer’s recommendation. FS was affected only by GIC- type (η2=0.027), whereas VHN was affected by GIC-type (η2=0.331), treatment-protocols (η2=0.067), storage-medium (η2=0.100) and increased storage-duration (η2=0.317). The tested parameters did not significantly influence the Ws of all tested GICs (p>0.05). The GICs with HA or CFA formulations might represent a promising approach due to their FS, VHN and Ws characteristics.

Izvorni jezik
Engleski

Znanstvena područja
Dentalna medicina

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