中国实用口腔科杂志 ›› 2012, Vol. 5 ›› Issue (9): 533-538.

• 论著 • 上一篇    下一篇

纯钛表面含锌活性涂层对成骨细胞生物学活性影响的研究

刘阳1张伟2赵宝红3a蔺 增4王丹宁3a封伟3a钟鸣3b   

  1. 作者单位:1.中国医科大学附属第四医院口腔科,沈阳 110032;2. 沈阳市中国科学院金属腐蚀与防护研究所,沈阳 110016;3. 中国医科大学口腔医学院 a种植中心,b中心实验室,沈阳  110002;4. 东北大学机械工程与自动化学院,沈阳  110004
  • 出版日期:2012-09-15 发布日期:2012-11-24
  • 基金资助:

    基金项目:沈阳市科技计划项目基金(F11-264-1-25);辽宁省自然科学基金项目资助(20092093)

Study on influence of active coating containing zinc of pure titanium surface on the activity of osteoblasts

LIU Yang**, ZHANG WeiZHAO Bao-hongLIN ZengWANG Dan-ningFENG WeiZHONG Ming.   

  1. *Department of Stomatology, the Fourth Affiliated Hospital of China Medical University, Shenyang 110032,China
  • Online:2012-09-15 Published:2012-11-24

摘要: 目的    采用微弧氧化(micro-arc oxidation, MAO)技术,在纯钛表面制备含锌(Zn)活性涂层,并评价其对成骨细胞活性的影响。方法    本实验于2009年10月至2010年10月在中国医科大学附属口腔医院中心实验室进行。以机械抛光纯钛试样作为对照组(CP组);经MAO技术处理的纯钛涂层试样根据钙(Ca)含量不同分为高钙组(H-Ca组)、低钙组(L-Ca组),以及在低钙组的涂层中加入锌元素的低钙加锌组(L-Ca-Zn组)。每组32个试件。将4组试样材料与MG63细胞复合培养,利用扫描电子显微镜(SEM)观察、噻唑蓝(MTT)比色试验、碱性磷酸酶(ALP)活性测定及酶联免疫吸附试验(ELISA)等方法,评价材料对成骨细胞黏附、增殖、分化及矿化的影响。所得数据采用SPSS13.0软件进行单因素方差分析(α=0.05)。结果    在实验检测期间,H-Ca组试样对成骨细胞的生长增殖、分化、矿化作用均优于L-Ca组,差异有统计学意义(P < 0.05)。比较L-Ca-Zn组与H-Ca组可以看出,在实验检测初期H-Ca组试样对成骨细胞的生长增殖、分化、矿化作用优于L-Ca-Zn组;随着观察时间的延长,L-Ca-Zn组试样细胞的增殖水平和ALP活性与H-Ca组间差异无统计学意义(P > 0.05)。比较L-Ca-Zn组和L-Ca组可以看出,在实验检测初期L-Ca-Zn组试样对成骨细胞的作用与L-Ca组差异无统计学意义(P > 0.05);随着观察时间的延长,L-Ca-Zn组试样显示出较L-Ca组试样具有更好的提高成骨细胞活性的作用(P < 0.05)。结论    采用MAO技术制备的含锌活性涂层纯钛可在一定程度上促进成骨细胞黏附、增殖、分化及矿化,具有良好的生物相容性。

关键词: 微弧氧化技术, 涂层, 锌, MG63, 细胞活性

Abstract: Objective    Active coating containing Zinc was deposited onto pure titanium using micro-arc oxidation (MAO) technology to evaluate the influence of activity of MG63. Methods    Our experiment was performed at Center Laboratory of China Medical University Affiliated Stomatology Hospital from October 2009 to October 2010. Pure titanium of mechanical polishing was used as control (CP group), and according to the Ca volume, the titanium substrates treated by MAO were distributed to high calcium surface (H-Ca group), low calcium surface (L-Ca group), and low calcium and zinc surface (L-Ca-Zn group). There were 32 specimens in each group. Cultivate osteoblasts (MG63) on different surfaces, and SEM, MTT assay, ALP activity, and ELISA was used to evaluate the influence of different substrates on attachment, proliferation, differentiation and mineralization of the cells. Data were analyzed by one-way ANOVA (α=0.05) performed with SPSS13.0. Results    The performance of H-Ca group on attachment, proliferation, differentiation and mineralization of the cells was better than L-Ca group (P < 0.05). At the initial phase of experiment, there was no significant difference between L-Ca-Zn and L-Ca (P > 0.05). At the later phase of experiment, the surface cells on L-Ca-Zn group showed better activity than on L-Ca group, and there was no significant difference between L-Ca-Zn and H-Ca in the results of MTT and ALP activity experiments (P > 0.05). Conclusion    Active coating containing Zinc deposited onto pure titanium by MAO method promotes the attachment, proliferation and differentiation of MG63, and shows good biocompatibility.

Key words: micro-arc oxidation technology, coating, Zinc, MG63, cell activity

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