%0 Journal Article
%T In vivo Bioactivity of Ti/HA Bio composites Fabricated by Powder Metallurgy Methods<br>粉末冶金法制备Ti/HA生物复合材料的体内生物活性
%A NING Cong-Qin
%A ZHOU Yu
%A HUANG Cong-Chun
%A GU Ya-Jun
%A LI De-Chao
%A DAI Ke-Rong
%A <br>宁聪琴
%A 周玉
%A 黄丛春
%A 顾亚军
%A 李德超
%A 戴克戎
%J 无机材料学报
%D 2003
%I Science Press
%X Ti/HA biocomposites were successfully fabricated by the powder metallurgy method. The in vivo bioactivities of the biocomposites were investigated. At an early stage of implantation, a fibrous film forms around the pure titanium implant. And with the increase of implantation time, the fibre tissue disappears gradually, accompanying the formation of new bone. After 6-month implantation, a typical bone-contact interface forms between the pure titanium implant and the surrounding bone. A very thin film of new bone is observed around the composite with 30% titanium and a big gap exists between the composite and the surrounding bone at an early stage of implantation, whereas, large quantity of new bone forms around the composites with 50% and 70% titanium. These three composites all form tight bone-bonding interface with the surrounding bone after 6-month implantation. So it can be concluded that these Ti/HA composites all exhibit excellent bioactivity. The osteogenic rate of the composite with 30% titanium is distinctly lower than that of the other two Ti/HA composites. The three Ti/HA composites all have better bioactivity than pure titanium.
%K powder metallurgy method
%K Ti/HA biocomposites
%K in vivo bioactivity<br>粉末冶金法
%K Ti／HA生物复合材料
%K 体内生物活性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=EEABD2173E8EFB75&yid=D43C4A19B2EE3C0A&vid=13553B2D12F347E8&iid=E158A972A605785F&sid=D698D0190A84C2BD&eid=BEBF2238C7F1C1F1&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=0&reference_num=8