| 李维燕,孙健.牙科树脂渗透氧化锆陶瓷材料的制备与性能研究[J].口腔材料器械杂志,2017,26(4):173-177. |
| 牙科树脂渗透氧化锆陶瓷材料的制备与性能研究 |
| Fabrication and characterization of polymer-infiltrated zirconia ceramic network dental materials |
| 投稿时间：2016-07-06 修订日期：2016-10-26 |
| DOI：10.11752/j.kqcl.2017.04.02 |
| 中文关键词: 树脂渗透氧化锆陶瓷 机械性能 CAD/CAM 口腔修复材料 |
| 英文关键词:Polymer-infiltrated zirconia ceramic Mechanical properties CAD/CAM Dental prosthetic materials |
| 基金项目:新疆维吾尔自治区自然科学基金（2016D01C090）；上海高校高峰高原学科建设项目；高分子陶瓷复合材料研发及应用（RKJ2015-Z05） |
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| 中文摘要: |
| 目的 制备一种牙科树脂渗透氧化锆陶瓷（polymer infiltrated zirconia ceramic network，PICN）材料，检测其机械性能。方法 制备纯氧化锆陶瓷、纯树脂以及4种不同孔隙率的陶瓷支架，实验组的陶瓷支架用树脂进行渗透得到陶瓷树脂复合材料（PICN）。通过三点弯曲强度实验检测材料的弯曲强度和弹性模量，采用单边切口梁法检测断裂韧性，通过纳米压痕系统测得材料的硬度以及用扫描电镜观测材料的显微结构。结果 树脂渗透氧化锆陶瓷（PICN）材料的弯曲强度值为135~266 MPa，弹性模量值为41.3~99.3GPa，断裂韧性值为2.20~4.04 MPam1/2，硬度值为1.93~10.83GPa。扫描电镜显示PICN材料中树脂在陶瓷孔隙内渗透完全。结论 这类树脂渗透氧化锆陶瓷材料的机械性能与人类天然牙釉质和牙本质相似，在口腔修复领域具有良好的应用前景。 |
| 英文摘要: |
| Objectives To manufacture a range of polymer-infiltrated zirconia ceramic network (PICN) dental materials and evaluate the mechanical properties of these new materials. Methods One dense zirconia ceramic, four zirconia ceramic networks with varying porosities, and four PICNs based on the porous ceramics mentioned above were manufactured.In addition, pure polymer were prepared.After specimen preparation, flexural strength and elastic modulus were measured via the three-point bending test. Fracture toughness was determined by a single edge notch beam (SENB) method.Vickers hardness was tested by the indentation-strength system, and scanning electron microscope (SEM) was employed to observe the microstructure. Results The flexural strength of PICNs ranged between 135 and 266 MPa and the elastic modulus between 41.3 and 99.3GPa, the fracture toughness ranged from 2.20 to 4.04 MPam1/2 and hardness values from 1.93 to 10.83GPa. SEM observation showed that the porous ceramic network was successfully infiltrated. Conclusions Thepolymer-infiltrated zirconia ceramic material is a successful material with mechanical behavior similar to that of natural human enamel and dentin. |
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