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Dental all-ceramic restoration and manufacturing method thereof
专利权人:
HANGZHOU ERRAN Technology Co.; Ltd.
发明人:
James Zhijian Shen,Jing Zhao
申请号:
US15503149
公开号:
US10507090B2
申请日:
2015.08.11
申请国别(地区):
US
年份:
2019
代理人:
摘要:
A dental all-ceramic restoration and manufacturing method thereof; the outer surface of the dental all-ceramic restoration has neither visible marks remaining from the removal of the connecting bars (7) nor local grinding traces and chipping, and is smooth with uniform structure. The manufacturing method thereof is wet-forming or milling. No connecting bars are needed to connect the dental restoration bodies (3) with a surrounding mould blank or ceramic blank. This eliminates the need for manually cutting off the connecting bars (7) to separate the forming body from the surrounding ceramic blank, further grinding and polishing process to treat the excessively rough outer surface, and thereby reducing the risk of chipping and premature failure. In the manufacturing processes thereof, the hardened ceramic green body (2) made by wet-forming technique has more homogenous microstructure and less particle packing defects than the dry-pressed blanks and partially sintered blanks. Furthermore, higher surface smoothness can be obtained by milling unsintered hardened ceramic green body than by milling partially sintered blanks. The dental all-ceramic restoration has a high degree of surface finish, and can be directly used without polishing, veneering or glazing.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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