Artículos de revistas
Effect of green propolis addition to physical mechanical properties of glass ionomer cements
Fecha
2011Registro en:
Journal of Applied Oral Science, v.19, n.2, p.100-105, 2011
1678-7757
10.1590/S1678-77572011000200004
Autor
TROCA, Valéria Barros Pereira Barbosa
FERNANDES, Karen Barros Parron
TERRILE, Amélia Elena
MARCUCCI, Maria Cristina
ANDRADE, Flaviana Bombarda de
WANG, Linda
Institución
Resumen
OBJECTIVE: This study investigated the mechanical properties of glass ionomer cements (GICs) combined with propolis as a natural antimicrobial substance. MATERIAL AND METHODS: Typifed green propolis, as an ethanolic extract (EEP) or in the lyophilized form (powder), was incorporated to specimens of Ketac Fil Plus, ChemFlex and Ketac Molar Easymix GICs. For each test, 8 specimens of each material were prepared. For water sorption and solubility tests, specimens were subjected to dehydration, hydration and redehydration cycles until a constant mass was obtained for each step. Measurements were recorded using a digital balance of 10-4 g precision. For the diametral tensile strength test, specimens were tested in a universal test machine at 0.5 mm/min crosshead speed after 24 h storage in deionized water. Data were evaluated by one-way ANOVA and Tukey's tests (p<0.05). RESULTS: The addition of propolis to GIC clearly increased water sorption compared to pure material. Solubility was material-dependent and was not clearly evident. For the diametral tensile strength test, association with propolis altered negatively only Chemfex. CONCLUSION: It may be concluded that incorporation of propolis to GICs alters some properties in a material-dependent condition.