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A new implant with solid core and porous surface: The biocompatability with bone
Author(s) -
Yang Xu,
Wang Dihua,
Liang Youde,
Yin Huayi,
Zhang Shuang,
Jiang Tao,
Wang Yining,
Zhou Yi
Publication year - 2014
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.34906
Subject(s) - materials science , osseointegration , titanium , surface roughness , in vivo , implant , biomedical engineering , rough surface , modulus , porosity , composite material , metallurgy , surgery , biology , medicine , microbiology and biotechnology
This research investigated osteogenic potencies of Farthing–Fray–Chen Titanium (FFcTi) implant with transitional porous‐solid structure. The material characteristics, biomechanical property, osteogenic performances were assessed. FFcTi showed similar roughness as sand‐blasted and acid etched titanium (SA), but was more hydrophilic than SA and machined commercial pure titanium (MA). Young's modulus of FFcTi implant in compressive tests was 15.8 ± 6.3 GPa, which was close to bone. In vitro observations manifested excellent spreading abilities of MC3T3‐E1 cell on FFcTi and SA. Adhesion rates of MC3T3‐E1 cells at 4 h gradually decreased on MA, SA, and FFcTi surfaces (MA > SA, p < 0.01; SA > FFcTi, p < 0.05), while cell proliferation ability on FFcTi was weaker than MA during 1–6 days (p < 0.01) and similar to MA and SA in day 11. ALP activity of cells on FFcTi at 14 day was higher than MA and lower than SA (p < 0.01). In a bone defect model of rabbits, BIC and bone volum ratio within 50 μm were significantly higher for FFcTi than MA (BIC, p < 0.01; BT0.05, p < 0.05) while bone volume ratio within 100 and 500 μm were of no differences. Micro CT analysis also showed similar results to the histomorphometric data. Thus, we conclude that FFcTi with melting sphere based multiporous structure has a hydrophilic, rough surface, and close modulus to bone. In vitro, its low proliferation and ALP activity promotion were similar to other micro scale roughed surface. In vivo test showed better osteogenesis ability when compared with MA at least in 2 weeks. Thus, this Farthing–Fray–Chen Titanium implant seems to hold considerable potential for bone implant applications. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 2395–2407, 2014.