组织工程化牙齿再生:热点与应用

Tissue-engineered tooth regeneration:hotspots and clinical application

背景:临床有一些方法治疗牙齿缺失比如假牙和牙齿种植,被认为有安全和使用寿命的问题。鉴于生物学和生物材料科学的发展,最近牙齿组织工程引起越来越多的关注。目的:综述用组织工程方法促进牙齿再生的热点与问题。方法:以"tissue engineering,tooth regeneration"为检索词,应用计算机检索Pubmed数据库(2007至2013年);以"组织工程、牙齿再生"为检索词,检索中国期刊网全文数据库(2007至2013年);共收集65篇关于组织工程牙齿再生方面的文献,中文25篇,英文40篇,排除发表时间较早、重复及类似研究,纳入48篇符合标准的文献。结果与结论:干细胞与合适的组织工程支架被广泛地应用在牙齿再生中,其中相当一部分研究还加入能够产生促进牙齿再生的生长因子或骨髓液,实现了部分或全部的牙齿再生。但对于牙齿再生的机制研究显然不足。

BACKGROUND：Although several prosthetic methods, such as artificial denture and dental implants, are clinical therapies to tooth loss, they are thought to have safety and usage time issues. With the development of biological and biomaterial sciences, recently, tooth tissue engineering has attracted more and more attention. OBJECTIVE：To reflect advances and problems of tissue engineering technologies for promotion of tooth regeneration. METHODS：Using the keywords of“tissue engineering, tooth regeneration”in English and Chinese, PubMed and CNKI databases from 2007 to 2013 were retrieved. A total of 65 literatures addressing tooth regeneration and tissue engineering were col ected, including 25 Chinese articles and 40 English articles. Published early, repetitive, and similar researches were excluded. Final y, 48 articles were included. RESULTS AND CONCLUSION：The combination of stem cells and suitable scaffolds is widely used in tooth regeneration today, and growth factors or bone marrow which can produce promote tooth regeneration are added as wel , which has achieved partial or whole tooth regeneration. But there are apparent deficiencies in studies which focus on mechanisms behind tooth regeneration.