Resumo

RODRIGUEZ RIUS, Daniel  e  GARCIA SABAN, F. Javier. Physico-chemical characterization of the surface of 9 dental implants  with 3 different surface treatments. Med. oral patol. oral cir. bucal (Ed.impr.) [online]. 2005, vol.10, n.1, pp.48-57. ISSN 1698-4447.

There are many surface treatments applied to dental implants. The aim of the present investigation is to compare the physico-chemical characteristics of titanium dental implant surfaces with different surface treatments. 9 dental implants from the same batch were divided in 3 groups and received 3 different surface treatments: machined, acid etched and a new chemical surface treatment called Avantblast^®. Scanning electron microscopy and confocal microscopy were used to image the treated surfaces, and energy-dispersive spectrometry and X-ray photoelectron spectrometry to provide a chemical characterization of the surfaces. Results: The acid etched and chemical etched surfaces had an increased roughness over the machined one. Surface chemical composition had differences between processes, as the surface with the new treatment presented a reduced level of impurities and increased thickness of the titanium oxide layer Conclusions: Surface roughness of titanium dental implants and thickness of the titanium oxide layer can be increased with a suitable surface treatment.

Palavras-chave : Dental implants; surface treatment; roughness; titanium oxide.

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