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
Article
en En
| LILACS, BBO
| ID: biblio-911329
Biblioteca responsable:
BR1822.9
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 COPalabras clave
Texto completo:
1
Índice:
LILACS
Asunto principal:
Selladores de Fosas y Fisuras
/
Resistencia a la Tracción
/
Color
/
Fenómenos Físicos
/
Fenómenos Químicos
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Pesqui. bras. odontopediatria clín. integr
Asunto de la revista:
ODONTOLOGIA
Año:
2016
Tipo del documento:
Article