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Low-temperature Degradation of Zirconia-based All-ceramic Crowns Materials: A Mini Review and Outlook

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Yang Huazhe 1 *   Ji Yang 2  
文摘 Zirconia-based bioceramics have been widely applied in the field of prosthodontics owing to its desirable mechanical performance, biocompatibility and aesthetics. However, the low-temperature degradation (LTD) of tetragonal zirconia (ZrO_2) under intraoral condition can lead to the deterioration of mechanical properties of ZrO_2 dental crowns, which contribute to many clinical failures in long-term observations. The long-term tetragonal phase stability and mechanical properties of yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) are influenced by grain size of ZrO_2 crystals, distribution and properties of stabilizers, the humid environment, etc. However, it is still difficult to control the abovementioned factors at the same time. This review summarizes the major advances in researches dealing with LTD and clarifies the obstacles to stabilization of the tetragonal ZrO_2. Furthermore, the suggestions on improving the LTD resistance of tetragonal ZrO_2 are proposed, which is the catalyst to promote the long-term stability of ZrO_2-based all-ceramic crowns.
来源 Journal of Materials Science & Technology ,2016,32(7):593-596 【核心库】
DOI 10.1016/j.jmst.2016.05.005
关键词 Zirconia ; Prosthodontics ; Low-temperature degradation ; Tetragonal phase
地址

1. Department of Biophysics, School of Fundamental Sciences, China Medical University, Shenyang, 110122  

2. Department of Stomatology, General Hospital of Shenyang Military Area Command, Shenyang, 110840

语种 英文
文献类型 研究性论文
ISSN 1005-0302
学科 金属学与金属工艺
基金 国家自然科学基金 ;  国家留学基金委员会（CSC）项目 ;  Foundation of the Education Department of Liaoning Province in China ;  Science and Technology Planning Project of Shenyang City
文献收藏号 CSCD:5746142

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