中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (21): 3178-3184.doi: 10.3969/j.issn.2095-4344.2016.21.020

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

口腔修复材料氧化锆生物陶瓷的制备方法及应用进展

王 强1, 2,尹娇娇3,杨华哲3   

  1. 1中国医科大学口腔医学院,辽宁省沈阳市  1100022辽宁省口腔医学研究所,辽宁省沈阳市  1100023中国医科大学公共基础学院,辽宁省沈阳市 110122
  • 收稿日期:2016-04-19 出版日期:2016-05-20 发布日期:2016-05-20
  • 通讯作者: 王强,中国医科大学口腔医学院,辽宁省沈阳市 110002;辽宁省口腔医学研究所,辽宁省沈阳市 110002
  • 作者简介:王强,男,1981年生,博士,副研究员,主要从事生物材料的表面改性及临床应用基础研究
  • 基金资助:

    国家自然科学基金(81500897);国家留学基金(201408210385);辽宁省教育厅项目(L2013285);辽宁省科学技术计划项目(2014305012);沈阳市科技计划项目(F11-262-9-16)

Preparation of zirconia bioceramics and its application in prosthodontics

Wang Qiang1, 2, Yin Jiao-jiao3, Yang Hua-zhe3   

  1. 1School of Stomatology, 3School of Fundamental Sciences, China Medical University, Shenyang 110122, Liaoning Province, China; 2Institute of Oral Medicine of Liaoning Province, Shenyang 110122, Liaoning Province, China
  • Received:2016-04-19 Online:2016-05-20 Published:2016-05-20
  • Contact: Wang Qiang, School of Stomatology, China Medical University, Shenyang 110122, Liaoning Province, China; Institute of Oral Medicine of Liaoning Province, Shenyang 110122, Liaoning Province, China
  • About author:Wang Qiang, Ph.D., Associate investigator, School of Stomatology, China Medical University, Shenyang 110122, Liaoning Province, China; Institute of Oral Medicine of Liaoning Province, Shenyang 110122, Liaoning Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81500897; the China Scholarship Foundation, No. 201408210385; the Project of Liaoning Provincial Department of Education, No. L2013285; the Liaoning Provincial Science and Technology Program, No. 2014305012; Shenyang Science and Technology Project, No. F11-262-9-16

摘要:

 文章快速阅读:

文题释义:
氧化锆陶瓷:
作为一种新型精细陶瓷,具有良好的机械性能(断裂韧性、强度、硬度等)、生物相容性、稳定性、美观性、热导性和成形性,能很好解决常规全瓷冠材料强度和韧性不足的问题。
氧化锆修复体的性能:具有能与金属相媲美的机械性能,可完全承受后牙的咀嚼力;改善了美观程度,材质、颜色与周围组织接近,并且全瓷冠内无金属支撑物,能提高患者对外观的满意度;组织相容性良好,置入后不会受到唾液、龈沟液的腐蚀,对口腔内软组织无毒性作用,在全瓷冠修复材料、种植材料、桩核材料等方面取得了长足发展,成为口腔医学领域的研究热点。
氧化锆基陶瓷的制备:研究主要集中于以下方向:ZrO2-AlO3(ZTA)增韧陶瓷体系,即将氧化锆微粒分散到其他母体陶瓷相(如氧化铝)体系;Y2O3- ZrO2(Y-TZP)体系,即将第二相(如氧化钇)分散到氧化锆母体相体系;Mg-ZrO2(Mg-PSZ)体系,即以Mg为稳定剂的部分稳定氧化锆多晶陶瓷体系。这些研究为氧化锆基全瓷冠修复体在临床上的应用奠定了基础。制备高性能的氧化锆基陶瓷的关键因素之一,是在制备工艺中将陶瓷制备与晶体生长控制技术(如纳米技术)相结合。氧化锆陶瓷的研制包括粉体合成、素坯成型、陶瓷烧结等几个方面。

背景:在众多口腔修复材料之中,氧化锆陶瓷具有高的强度、硬度和耐磨、耐腐蚀性等优良性能,然而远期临床观察中常出现基冠机械性能下降和饰瓷崩裂等稳定性问题,成为阻碍其进一步发展的瓶颈。
目的:归纳总结口腔修复氧化锆生物陶瓷材料的制备方法及应用进展。
方法:结合文献和课题组的研究,对氧化锆生物陶瓷的性质、晶体结构、制备方法及其在口腔修复领域应用的进展进行论述,指出影响其稳定性问题的原因,并对其发展方向做出预测。
结果与结论:氧化锆陶瓷的研制包括粉体合成、素坯成型、陶瓷烧结等几个方面。针对氧化锆基全瓷冠修复体的不稳定等问题,不仅需要从工艺上对氧化锆基粉体的制备进行优化,提高原料纯度、机械性能、生物性能和稳定性,而且需从晶体学角度研究晶体成核、生长、第二相及晶粒尺寸对晶体结构稳定性及基冠生物力学性能的影响,以及基冠与饰瓷晶格匹配对界面的影响等问题进行深入理论分析。

 

 ORCID: 0000-0001-6138-0121(王强)

关键词: 生物材料, 口腔生物材料, 生物陶瓷, 氧化锆, 口腔修复学, 国家自然科学基金

Abstract:

BACKGROUND: Zirconia is considered to be one of the promising prosthodontics materials because of its high strength, high hardness, excellent wear resistance and excellent corrosion resistance. However, the development of zirconia is hindered owing to the uncertainty in long-term stability of zirconia all-ceramic crowns such as the cracking (chipping) of veneering porcelain and deterioration of mechanical properties of zirconia dental crowns under intraoral conditions.

 

OBJECTIVE: To summarize the preparation of zirconia bioceramic and its application progress in the field of prosthodontics.

 

METHODS: The properties, crystal structure, preparation and use of zirconia in prosthodontics were reviewed. Reasons that affected the stability of zirconia were also discussed. The future development of zirconia was forecasted.

 

RESULTS AND CONCLUSION: Preparation of zirconia bioceramics involves the following aspects: powder synthesis, biscuit molding, and ceramic sintering. To improve the istability of zirconia all-ceramic crowns, we optimize the preparation of zirconia powder to promote the purity, mechanical properties, biological properties and stability. Furthermore, it is necessary to explore the effects of crystal nucleation, growth, second phase and grain size on crystal stability and biomechanical properties of the tooth abutment, as well as to conduct an in-depth theoretical analysis on the effect of tooth abutment and lattice matching of porcelain crowns on the interface.

 

 

 

Key words: Dental Porcelain, Dental Prosthesis, Tissue Engineering

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