| 摘要 |
A dental all-ceramic restoration and manufacturing method thereof; the outer surface of the dental all-ceramic restoration has no connection point of a support column (7) and no local abrasion or crack, and has a bright and clean surface and a uniform and coherent structure. The manufacturing method of the dental all-ceramic restoration can be a wet forming method or a milling-grinding forming method. A dental all-ceramic restoration body (3) does not need to be connected and fixed to a surrounding model material block (1) or a ceramic block via a support column in the manufacturing process, thus avoiding manual grinding of the support column (7) for separation of a formed restoration and a surrounding ceramic block, and avoiding conducting a polishing process on the outer surface of the restoration made excessively rough as a result of grinding the support column (7), thus reducing the risk of cracks and premature fracture failure of the restoration. When a ceramic hard biscuit (2) for milling machining is manufactured by employing a wet forming process, the microstructure thereof is more uniform than a ceramic block manufactured via dry pressing forming and partial sintering. The dental all-ceramic restoration has a high degree of surface finish, and can be directly used without polishing or glazing and veneering ceramic. |
