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- Title
Character of zinc-modified titanium surface and its antibacterial property to S.mutans.
- Authors
XU Juan; HU Min; TAN Xin-ying; LIU Hua-wei; TAO Ye
- Abstract
PURPOSE: To evaluate the chemical composition of the zinc modified surface of implanted titanium and to assess its effect on the antibacterial activity in vitro. METHODS: Pure commercial titanium discs were modified with zinc by plasma immersion ion implantation and deposition (PIIID) technique. The surfaces were characterized by X-ray photoelectron spectrometer. To measure the bacterial responses, S. mutans were seeded onto the surfaces of discs in 24-well culture plates at a density of 1 x 109 CFU/mL and observed by a scanning electron microscope. The statistical significance of difference was assessed by ANOVA using SPSS 13.0 software package, followed by a Bonferroni test. RESULTS: The full range XPS indicated that the main difference of zinc PIIID on the disc was the appearance of the signals of zinc and oxygen. At the same time, the relative atomic concentration of zinc increased gradually with the implanting time, the concentration of zinc in Zn-Ti-80 rain group being the highest among the groups. The zinc implanted titanium could affect adherence and the form of S.mutans. The adherence amount of bacteria in Zn-Ti-60 min and -80 min group was significantly less than those in cp-Ti group, Zn-Ti-20 rnin and -40 rain group. CONCLUSIONS: PIIID can successfully introduce zinc into pure titanium surface, which can change adherence and the form of S.rautans slightly. Supported by Natural Science Foundation of Beijing Municipality (7112124) and No.52 General Financial Grant of China Postdoctoral Science Foundation(2012M521879).
- Subjects
TITANIUM; METALLIC surfaces; ANTIBACTERIAL agents; STREPTOCOCCUS mutans; IN vitro studies; PLASMA immersion ion implantation; X-ray photoelectron spectroscopy
- Publication
Shanghai Journal of Stomatology, 2013, Vol 22, Issue 2, p151
- ISSN
1006-7248
- Publication type
Article