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Effects of Storage Media on the Flexural Strength of GIC (CROSBI ID 599877)

Prilog sa skupa u časopisu | sažetak izlaganja sa skupa | međunarodna recenzija

Goršeta, Kristina ; Glavina, Domagoj ; Škrinjarić, Tomislav ; Škrinjarić, Ilija Effects of Storage Media on the Flexural Strength of GIC // Journal of dental research. 2013

Podaci o odgovornosti

Goršeta, Kristina ; Glavina, Domagoj ; Škrinjarić, Tomislav ; Škrinjarić, Ilija

engleski

Effects of Storage Media on the Flexural Strength of GIC

The aim of this study was to test the flexural strength (FS) of cured glass-ionomer cement after storage in different storage media. The FS of commercial glass ionomer (Fuji Equia Fil, GC) was measured using a method based on ISO9917-2:1998. Specimens (n=10 per group) were prepared in split moulds (2x2x25mm), compressed and light-cured according to manufacturers' instructions, stored at 37oC (100% RH) for 1 week. Samples of Group 1 were allowed to set without coat application and in the Group 2 samples were coated (Equia Coat, GC) and light cured for 20s (Bluephase G2, IvoclarVivadent). Three different media (distilled water, artificial saliva and vaseline) were used to store 10 samples from each group (total of 60 samples). Each specimen was tested using an Universal testing machine at 1 mm/min crosshead speed and loaded to fracture using a 3-point bending test (l=20mm), with 1kN load cell. Data were analysed by ANOVA and Tukey HSD post hoc test p<0.05. FS of glass ionomer cement samples stored in distilled water (21.8 MPa) was significantly lower than FS of samples stored in artificial saliva (37.4 MPa) and Vaseline (40.1 MPa). Results obtained in artificial saliva displayed significantly lower FS values than samples stored in vaseline. The highest values were obtained in group treated with Coat and stored in Vaseline (78.7 MPa). There is no significant difference between coated and no coated samples stored in distilled water and between coated and no coated samples stored in artificial saliva. Results showed that current ISO standard proposed for storage media (distilled water) is inappropriate due to high amount of ion leakage in the water affecting material properties.

glass ionomer; flexural strength

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Podaci o prilogu

2013.

nije evidentirano

objavljeno

Podaci o matičnoj publikaciji

Journal of dental research

0022-0345

Podaci o skupu

Annual Meeting of the IADR Continental European Division-CED with the Scandinavian Division-NOF (46 ; 2013)

predavanje

04.09.2013-07.09.2013

Firenca, Italija

Povezanost rada

Dentalna medicina

Indeksiranost