Buffering or non-buffering; an action of pit-and-fissure sealants.
J Dent
; 43(10): 1285-9, 2015 Oct.
Article
em En
| MEDLINE
| ID: mdl-26163162
ABSTRACT
OBJECTIVES:
The aim of this study was to evaluate the buffering capacity of glass-ionomer material in vitro. The null hypothesis tested was that there is no effect of cured glass-ionomer pit-and-fissure sealant (PFS) pastes on the environmental acidity as well as the tooth substrate.METHOD:
For each material, a cured PFS disk and a section of human enamel were simultaneously soaked in lactic acid solution in a conical tube, and the pH of the solution was measured daily for one week. Subsequently, the total amount of calcium leached out in solution was also measured with ICP-AES.RESULTS:
The results showed that the acidity of the solutions changed over time. Significant differences of calcium ion concentration in solution were observed as a result of decalcification. As the PFS products tested did not include calcium, the concentration of calcium ion released indicated acidic erosion of the tooth enamel.CONCLUSIONS:
The glass-ionomer countered the acid of the solution rapidly and preserved the structure of human tooth enamel.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Selantes de Fossas e Fissuras
/
Esmalte Dentário
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article