Artículos de revistas
Characterization and in vitro cytocompatibility of an acid-etched titanium surface
Fecha
2010-01-01Registro en:
Brazilian Dental Journal, v. 21, n. 1, p. 3-11, 2010.
0103-6440
1806-4760
10.1590/S0103-64402010000100001
S0103-64402010000100001
2-s2.0-77955612098
2-s2.0-77955612098.pdf
1239305418355498
5535418670745125
Autor
Catholic University of Brasília
Universidade de São Paulo (USP)
Universidade Estadual Paulista (Unesp)
Universidade Federal de Uberlândia (UFU)
Institución
Resumen
The aims of this study were to characterize the microstructure of a commercially pure titanium (cpTi) surface etched with HCl/H 2SO 4 (AE-cpTi) and to investigate its in vitro cytocompatibility compared to turned cpTi (T-cpTi). T-cpTi showed a grooved surface and AE-cpTi revealed a surface characterized by the presence of micropits. Surface parameters indicated that the AE-cpTi surface is more isotropic and present a greater area compared to T-cpTi. The oxide film thickness was similar between both surfaces; however, AE-cpTi presented more Ti and O and less C. Osteoblastic cell proliferation, alkaline phosphatase activity, and bone-like nodule formation were greater on T-cpTi than on AE-cpTi. These results show that acid etching treatment produced a surface with different topographical and chemical features compared to the turned one, and such surface modification affected negatively the in vitro cytocompatibility of cpTi as demonstrated by decreasing culture growth and expression of osteoblastic phenotype.
Materias
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