INVESTIGADORES
APELLA Maria Cristina
artículos
Título:
Synthetic hydroxyapatite as a surface model of dental enamel and dentine
Autor/es:
APELLA M. C.; VENEGAS S. C.; GARCÍA RODENAS L. A.; BLESA M. A.; MORANDO P. J.
Revista:
Anales de la Asociación Química Argentina
Editorial:
Asociación Química Argentina
Referencias:
Lugar: Buenos Aires; Año: 2009 vol. 97 p. 109 - 118
ISSN:
0365-0375
Resumen:
The interaction of powdered enamel and dentine with bacteria is compared with the same interplay on synthetic hydroxyapatite (HAP). The surface characteristics of the three materials were studied using electrophoretic measurements and EDAX. The effect of Ca2+ on the mobilities of the biomaterials was measured and explained in terms of a simple surface complexation model involving ≡Ca5(PO4)3+ and ≡Ca4(PO4)3- as the key surface species. The effect of Ca2+ on bacterial adhesion was determined and interpreted in terms of the bridging between bacterial and biomaterial surfaces by Ca2+.
