Chemical and structural characterization of glass ionomer cements indicated for atraumatic restorative treatment.
J Contemp Dent Pract
; 16(1): 61-7, 2015 01 01.
Article
em En
| MEDLINE
| ID: mdl-25876952
ABSTRACT
Glass ionomer cements (GICs) are restorative materials, which clinical use has increased significantly during the last decade. The aim of the present study was to analyze the chemical constitution and surface morphology of four glass ionomer cements Maxxion R, VitroFill, Vidrion R and Vitremer. Twelve polyethylene tubes with an internal diameter of 3 and 3 mm in length were prepared, filled and then transferred to a chamber with 95% relative humidity and a temperature of 37°C. The surface morphology of the tested materials was examined by scanning electron microscopy (SEM) and main components were investigated by energy-dispersive X-ray microanalysis (EDX). Scanning electron microscopy revealed irregular and rough external surface. Cracking was not observed. The main constituents were found to be aluminum, silicon, calcium, sodium and fluoride. Phosphorus, sulfur and barium were only observed in Vidrion R, while chlorine were only observed in Maxxion R. Elemental mapping of the outer surface revealed high concentration of aluminum and silicon. Significant irregularities on the surface of the tested materials were observed. The chemical constitution of all GIC was similar.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tratamento Dentário Restaurador sem Trauma
/
Cimentos de Ionômeros de Vidro
Limite:
Humans
Idioma:
En
Revista:
J Contemp Dent Pract
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2015
Tipo de documento:
Article