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- W3032657904 abstract "ObjectiveTo evaluate the implant-bone interfaces on implants with active Zn coating in a rabbit model.MethodsPure titanium cylinder implants, fabricated by machining, were prepared by surface micro-arc oxidation (MAO). The MAO-Zn/Ca/P coated (experimental group) and the MAO-Ca/P coated (control group) implants were randomly placed in the rabbit mandible. The samples were harvested at 4 and 12 weeks postoperatively, histological analysis on the implant-bone interfaces of the two implants was performed, and the bone coverage was compared.ResultsThe coatings of MAO presented micro-porous structure with dense and uniform features, in which size of micro-porous increased with zinc element. The histological examination of implant-bone contact interfaces showed that the bone tissues attached on the coatings increased with time. Further, the adhered bone tissue in the experimental group was thicker and denser and had a larger amount compared to that in the control group at 4 and 12 weeks postoperatively. The bone coverage in the experimental group (70.8%±13.6%) at 12 weeks postoperatively was significantly higher than that in the control group (55.9%±13.8%) (P<0.05). The results of bone interface element showed that the apatite layer was precipitated at 12 weeks.ConclusionThe addition of active zinc element can improve the biological activity of the coating, enhance the osteogenesis ability of the coating, and accelerate the osseointegration of implant-bone interfaces.Key words: Active coating; Zn; Implant-bone interface; Micro-arc oxidation" @default.
- W3032657904 created "2020-06-05" @default.
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- W3032657904 date "2017-10-28" @default.
- W3032657904 modified "2023-09-27" @default.
- W3032657904 title "Evaluation of implant-bone contact interface on active zinc coated implants" @default.
- W3032657904 doi "https://doi.org/10.3760/cma.j.issn.1673-4181.2017.05.007" @default.
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