Formulation of glutaraldehyde disinfectant for alginate impressions.
Dent Mater J
; 18(4): 337-46, 1999 Dec.
Article
em En
| MEDLINE
| ID: mdl-10786155
ABSTRACT
The effect of buffer agents incorporated in glutaraldehyde disinfectants on the surface quality of dental models was examined by the measurement of surface roughness, X-ray diffraction analysis and SEM observation. Seven experimental glutaraldehyde disinfectants were prepared using two buffer agents, potassium acetate alone or potassium acetate and sodium hydrogen carbonate in combination. Four kinds of sulfate--zinc, calcium, potassium and magnesium sulfate--were added to these disinfectants in order to accelerate the hydration of calcium sulfate hemihydrate. The impressions treated with the experimental disinfectants for 1 h produced stone surfaces which had significantly lower surface roughness values than those treated with the commercial disinfectants (p < 0.05). The X-ray diffraction analysis and SEM observation showed that these superior surfaces were produced as a result of significant reductions in the amount of residual calcium sulfate hemihydrate. Replacement of buffer agents in commercial glutaraldehyde disinfectants with chemicals such as those studied in the present study will improve the surface quality of dental stone.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sulfato de Cálcio
/
Glutaral
/
Desinfetantes de Equipamento Odontológico
/
Materiais para Moldagem Odontológica
/
Modelos Dentários
Limite:
Humans
Idioma:
En
Revista:
Dent Mater J
Ano de publicação:
1999
Tipo de documento:
Article
País de afiliação:
Japão