Naslov
„Influence of thermo-curing on the flexural strength of GIC“.

Autori
Goršeta, Kristina ; Škrinjarić, Tomislav ; Gavic, Lidia ; Glavina, Domagoj

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts of the Academy of Dental Materials Annual Meeting, 8-11 October 2014 - Bologna, Italy. U: Dental Materials. 2014 ; 30(Supplement 1) / David C Watts - Dorchester, 2014, E69-e69

Skup
The Academy of Dental Materials 2014 Annual Meeting

Mjesto i datum
Bologna, Italija, 08.10.2014. - 11.10.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
flexural strength ; GIC

Sažetak
Objectives: The aim of this study was to test the influence of thermo-curing (externally applied heat) on flexural strength (FS) of glass-ionomer cement. Material and Methods: 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 thermo-cured with polymerization unit or according to manufacturers' instructions and stored at 37oC (100% RH) in distilled water for 1 week. Samples of Group 1 were allowed to set without coat and thermo-cure application, in the Group 2 samples were set with coat (Equia Coat, GC) application without thermo- curing. Samples of Group 3 were thermo-cured with polymerization unit (Bluephase G2, IvoclarVivadent) for 60s without coat application and in the Group 4 samples were coated and thermo- cured for 60s. Samples were stored in distilled water for 1 week and FS tested. 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. Results: FS of coated and thermo-cured GIC samples (Group 4) showed significantly higher values (69, 66 MPa) comparing to all other groups. Values of FS of samples of Group 3 (thermo-curing without coat) (35, 8 MPa) were significantly higher comparing to groups without thermo-curing. Groups (1 and 2) without thermo-curing were not significantly different in FS (21, 8 and 18, 8 MPa respectively). Conclusion: Results showed that application of thermo-curing during setting can significantly improve flexural strength of GIC.

Izvorni jezik
Engleski

Znanstvena područja
Dentalna medicina

POVEZANOST RADA