| Fe2O3着色对牙科纳米氧化锆机械性能及透明度影响的研究 |
| 投稿时间：2016-04-11 修订日期：2016-05-02 点此下载全文 |
| 引用本文：王宇华,张富强.Fe2O3着色对牙科纳米氧化锆机械性能及透明度影响的研究[J].医学研究杂志,2017,46(6):68-70,143 |
| DOI：
10.11969/j.issn.1673-548X.2017.06.018 |
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| 基金项目:国家自然科学基金青年基金资助项目（81500881）；上海市卫生和计划生育委员会基金资助项目（面上项目）（201540045）；上海交通大学医学院基金资助项目（11XZ21047） |
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| 中文摘要:目的 观察Fe2O3通过气氛着色法对氧化锆的着色效果、力学性能和透明度的影响。方法 含不同比例Fe2O3的氧化锆粉末，对预烧结的牙科用氧化锆瓷块进行包埋后烧结至1450℃。采用分光光度计测量瓷块颜色及透明度，万能测力仪测试力学性能。结果 随着Fe2O3在包埋粉中的比例增加，烧结后的氧化锆瓷块的色泽出现淡黄至黄褐色转变。色度值L*为64.91~90.94，a*值范围为-1.27~12.70，b*值范围为1.02~38.66，基本覆盖天然牙的牙色范围。瓷块的透明值范围为14.23~10.15。着色前后瓷块的3点抗弯强度无显著改变（P>0.05）。结论 采用Fe2O3的气氛着色法，对牙科氧化锆瓷块的机械性能及透明度无显著影响，具临床应用前景。 |
| 中文关键词:氧化锆 三氧化二铁 力学性能 透明度 |
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| Effect of Fe2O3 Coloring Method on the Mechanical Property and Transparency Parameter of Dental 3Y-TZP |
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| Abstract:Objective To determine the influence of Fe2O3 coloring method to the mechanical and transparency parameter of dental zirconia. Methods Presintered zirconia blocks were coverd with zirconia powder blended with different ratio of Fe2O3, then sintered to 1450℃. Mechanical property and transparency parameter were calculated. Results The L*value was in the range from 64.91 to 90.94. The a*value was in the range from 1.27 to 12.70. The b* value was in the range from 1.02 to 38.66. There was no significant difference (P>0.05) of the flexural strength and in each group with the increase of Fe2O3. Conclusion This method produced dental zirconia specimens with light yellow to amber brown colors with the increase of Fe2O3 and no significant influence of mechanical property and transparency. |
| keywords:Zirconia Fe2O3 Mechanical property Transparency parameter |
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