Short-term in situ/ex vivo study of the anticariogenic potential of a resin-modified glass-ionomer cement associated with adhesive systems
Nenhuma Miniatura disponível
Data
2010-11-01
Autores
Wang, Linda
Honorio, Heitor Marques
Rios, Daniela
Delbem, Alberto Carlos Botazzo [UNESP]
Palma-Dibb, Regina Guenka
Rabelo Buzalaf, Marilia Afonso
Atta, Maria Teresa
Andalo Tenuta, Livia Maria
Título da Revista
ISSN da Revista
Título de Volume
Editor
Quintessence Publishing Co Inc
Resumo
Objective: As resin-modified glass-ionomer cement (RMGIC) is an adhesive material, its association to dentin bonding agents (DBAs) was previously proposed. This study investigated the adjunctive behavior of an RMGIC with etch-and-rinse bonding systems under in situ/ex vivo cariogenic challenge. Method and Materials: Bovine enamel blocks (3 3 2 mm) were randomly assigned to group VP, Vitremer + its own primer (3M ESPE); group VSB, Vitremer + Single Bond (3M ESPE); and group VPB, Vitremer + Prime & Bond 2.1 (Dentsply). Two blocks of each group were randomly placed in an acrylic palatal appliance, so each appliance included six blocks. Volunteers (n = 10) wore these appliances according to given instructions to promote a sucrose challenge eight times/day for 15 days. After this period, the blocks were removed from the devices and cleaned, and demineralization was assessed through longitudinal microhardness analysis (Knoop indenter, 25 g/5 s). Data were submitted to three-way ANOVA and Tukey test (P < .05). Results: No treatment was able to completely avoid demineralization. All materials showed a statistically significant difference in mineral loss when the microhardness on the outer enamel was compared with deeper regions (P < .05). Conclusion: Association of the tested RMGICs with etch-and-rinse DBAs did not seem to be more beneficial against caries than the conventional treatment with RMGIC. (Quintessence Int 2010; 41: e192-e199)
Descrição
Palavras-chave
demineralization, dentin bonding agent, enamel, in situ
Como citar
Quintessence International. Hanover Park: Quintessence Publishing Co Inc, v. 41, n. 10, p. E192-E199, 2010.