| 摘要 |
A ceramic bracket is mainly made from the following raw materials by weight percent: 70-100wt% of zirconia oxide, 0-5wt% of yttrium oxide, 0-3wt% of hafnium oxide and 0-30wt% of alumina oxide. The ceramic bracket has higher density, better strength and biological compatibility, has good surface smoothness and high wear resistance, and is suitable for application in oral cavity. |
