中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (6): 971-978.doi: 10.3969/j.issn.2095-4344.0077

• 生物材料综述 biomaterial review • 上一篇    下一篇

羟基磷灰石功能梯度生物材料在硬组织中的应用

韦  薇1,舒婧嫒1,王  晶1,郑丽霞2,李  璐1,王青山1
  

  1. 1滨州医学院附属医院口腔科,山东省滨州市  256603;2聊城市复退军人医院,山东省聊城市  252000
  • 收稿日期:2017-09-01 出版日期:2018-02-28 发布日期:2018-02-28
  • 通讯作者: 王青山,教授,硕士生导师,滨州医学院附属医院,山东省滨州市 256603
  • 作者简介:韦薇,女,1992年生,山东省济宁市人,汉族,滨州医学院在读硕士,主要从事口腔医学研究。
  • 基金资助:
    山东省医药卫生科技发展计划(2013WS0308);山东省自然科学基金(ZR2013HM044)

Application of hydroxyapatite functional graded biomaterials in human hard tissue replacement

Wei Wei1, Shu Jing-ai1, Wang Jing1, Zheng Li-xia2, Li Lu1, Wang Qing-shan1
  

  1. 1Department of Stomatology, Affiliated Hospital of Binzhou Medical University, Binzhou 256603 Shandong Province, China; 2Liaocheng Veteran Hospital, Liaocheng 252000, Shandong Province, China
  • Received:2017-09-01 Online:2018-02-28 Published:2018-02-28
  • Contact: Wang Qing-shan, Professor, Master’s supervisor, Department of Stomatology, Affiliated Hospital of Binzhou Medical University, Binzhou 256603 Shandong Province, China
  • About author:Wei Wei, Studying for master’s degree, Department of Stomatology, Affiliated Hospital of Binzhou Medical University, Binzhou 256603 Shandong Province, China
  • Supported by:
    the Medical and Health Science and Technology Development Plan of Shandong Province, No. 2013WS0308; the Natural Science Foundation of Shandong Province, No. ZR2013HM044

摘要:

文章快速阅读:

 

文题释义:
功能梯度生物材料:采用梯度复合技术将两种或两种以上具有不同性能的材料,通过原材料的组成和结构发生连续或准连续变化,使其内部应力减小或消失,从而使材料性能和功能也呈现梯度变化。与传统的均质材料相比,其含有呈梯度变化的中间层,梯度材料组成配比可设计,材料内部应力的分布得以优化,结构及性能亦相应改变,从而满足不同部位对材料使用性能的要求,既充分发挥了各材料的性能优势又克服了结合部位的性能不匹配,各组分间产生牢固的机械结合和化学结合,解决表层脱落、溶解、吸收、不稳定等问题。
功能梯度生物材料的设计思路:中心层为金属、高强度陶瓷或高分子材料,作为力学承载区,以承担人体的各种运动载荷;中间层为过渡层,随着梯度层数的增多,相邻层间组分含量的差异减小,层间界面的相容性提高,热膨胀系数的不同产生的残余应力减小,因而各层间的结合更加紧密,提高力学性能;表层为羟基磷灰石等生物活性材料,有利于成骨细胞沉积,引导新骨形成,实现材料与生物骨组织间产生紧密的骨性结合,而且不会引起排异、积水、腐蚀、炎症等。
 
背景:羟基磷灰石功能梯度生物材料对硬组织替代或种植体领域的研究起到积极的推动作用。
目的:综述近年国内外羟基磷灰石功能梯度生物材料在硬组织替换中的应用及研究进展。
方法:由第一作者检索PubMed数据及中国期刊全文数据库2010年1月至2017年4月有关功能梯度生物材料应用于硬组织替换的文献,检索关键词为“功能梯度生物材料,硬组织替代,制备技术,性能评价,牙种植体,骨组织;Functional graded biomaterial,Hard tissue replacement implants,Preparation methods,Performance evaluation,Dental implants,Osseous tissue”。
结果与结论:功能梯度生物材料是一种在结构和组成要素上连续或准连续变化、其性能相应于结构与组分而发生可控和可设计的渐变非均质复合材料,羟基磷灰石是该材料表面应用的首要选择。功能梯度生物材料既充分发挥了各材料的性能优势又减少了其内部应力界面,呈现出优良的力学和生物学性能,因此在骨组织替代或种植体修复领域受到广泛关注。由于功能梯度生物材料结构的独特性,因而其设计、制备技术和性能优化成为今后研究的重点和热点。

关键词: 功能梯度生物材料, 羟基磷灰石, 硬组织替代, 制备, 性能评价, 山东省自然科学基金, 生物材料

Abstract:

BACKGROUND: Functional graded biomaterials promote the development of human hard tissue replacement.
OBJECTIVE: To review the research progress of functional graded biomaterials in human hard tissue replacement.
METHODS: The first author retrieved the PubMed and CNKI databases for relevant articles published from January 2010 to April 2017 using the keywords of “functional graded biomaterial, hard tissue replacement implants, preparation methods, performance evaluation, dental implants, osseous tissue” in English and Chinese, respectively.
RESULTS AND CONCLUSION: Functional graded biomaterials refer to a kind of heterogeneous composite materials with controllable and programmable gradient properties on account of continuous or quasi-continuous changes in the structure and chemical composition. Hydroxyapatite is the primary choice for the material surface. Serving as an emerging biomaterial, the functional graded biomaterial has unique structure mechanism and excellent properties. It gives full play to the performance advantages of each component and reduces internal stress interface between components. Therefore, the functional graded biomaterial will be an issue of concern in the future because of the optimization of its design, preparation and performance.   

Key words: Dental Implants, Hydroxyapatite, Tissue Engineering

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