Effect of Nano-filled Protective Coating on Microhardness and Wear Resistance of Glass-ionomer Cements / 대한소아치과학회지
Journal of Korean Academy of Pediatric Dentistry
; (4): 226-232, 2019.
Artigo
em Coreano
| WPRIM (Pacífico Ocidental)
| ID: wpr-787361
Biblioteca responsável:
WPRO
ABSTRACT
The purpose of this study was to investigate the effect of adding a protective coating on the microhardness and wear resistance of glass ionomer cements (GICs).Specimens were prepared from GIC and resin-modified GIC (RMGI), and divided into 3 groups based on surface protection (1) no coating (NC), (2) Equia coat coating (EC), and (3) un-filled adhesive coating (AD). All specimens were then placed in distilled water for 24 h. Surface hardness (n = 10) was evaluated on a Vickers hardness testing machine. Wear resistance (n = 10) was evaluated after subjecting the specimen to thermocycling for 10,000 cycles using a chewing simulator. Data were analyzed using a one-way ANOVA and the Kruskal-Wallis test.Surface hardness was highest in the NC groups, followed by the EC and AD groups. The wear depth of GI + NC was significantly higher than that of all RMGI groups. EC did not significantly lower the wear depth compared to AD.Based on these results, it was concluded that although EC does not increase the surface microhardness of GIC, it can increase the wear resistance.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Água
/
Adesivos
/
Cimentos de Ionômeros de Vidro
/
Dureza
/
Testes de Dureza
/
Mastigação
Idioma:
Coreano
Revista:
Journal of Korean Academy of Pediatric Dentistry
Ano de publicação:
2019
Tipo de documento:
Artigo