Characterization of Mechanical Properties, Fluoride Release and Colour Stability of Dental Sealants
Pesqui. bras. odontopediatria clín. integr
;
16(1): 149-158, jan.-dez. 2016. tab, ilus, graf
Artigo
em Inglês
| LILACS, BBO
| ID: biblio-911329
ABSTRACT
Objective:
To compare the mechanical properties, fluoride release, colour stability and spreading characteristics of glass ionomer cement (GIC), compomer (CO), chemical (CR) and light-cured resin based (LR) fissure sealants. Material andMethods:
Cylinders were prepared to determine mechanical properties by diametral tensile strength tests (stored for 24h in distilled water at 37°C) and fluoride release (24 hours, 3, 7 and 15 days; deionised water). Disk shaped specimens were prepared to determine colour stability (1 week in pigmenting solution; 37°C; CIE L*a*b*; ΔE). A simplified method of a spreading test was proposed to predict viscosity characteristics of the tested materials. Data were analysed using one-way ANOVA followed by T-test (p<0.05).Results:
Results showed differences between materials regarding all tested properties. CO was statistically more resistant than the other materials (p<0.05), but no difference was observed between CR and LR. The fluoride release of GICs was significantly higher than the other materials (p<0.05). CO showed lower ΔE than the other materials in the following order CO
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Selantes de Fossas e Fissuras
/
Resistência à Tração
/
Cor
/
Fenômenos Físicos
/
Fenômenos Químicos
Tipo de estudo:
Estudo prognóstico
Idioma:
Inglês
Revista:
Pesqui. bras. odontopediatria clín. integr
Assunto da revista:
Odontologia
Ano de publicação:
2016
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Estácio de Sá/BR
/
Universidade Federal Fluminense/BR
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