Sintering Properties of Tooth Zirconia Ceramic

• Main Authors: Yi-Ting Lin, 林苡婷
• Other Authors: Sung-Long Chen
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/13670530589416200083

碩士 === 國立高雄應用科技大學 === 機械與精密工程研究所 === 101 === In this study, development of imitated natural dental zirconia ceramic block timber is proposed. Zirconia ceramic powder as a base material is mixed up four different color powders by microemulsion powder metallurgy manufacturing process to produce different color zirconia ceramics. To investigate the properties of zirconia ceramics, crystal structures, color alignments and measuring block timber shrinkage rate and density are measured with SEM, X-ray fine diffraction, three-point bending test and color locating system measuring mechanical properties, respectively. The fabrication of false tooth is designed with 3D digital dental CAD/CAM scanner, design software and micro sintering furnace. The results revealed that the best flexural strength＞1000 MPa and sintering shrinkage＜20% is the best condition of tooth ceramic. The zirconia ceramic fits the above conditions to produce tooth fixed prosthesis, and the color of the zirconia ceramic is like natural tooth. Also, it can be cost down, unnecessary mask and reduced the burn-attached thickness of a ceramic layer.