Michael Jahns,Jacqueline C. Rolf,Dajana Zimmermann
申请号：
US16394739
公开号：
US20190247152A1
申请日:
2019.04.25
申请国别(地区):
US
年份:
2019
代理人:
摘要：
The invention relates to a process for selectively treating parts of the surface of a porous dental zirconia article, the process comprising the steps of providing a liquid composition and a porous 3-dimensional dental zirconia article having an outer and inner surface, applying the liquid composition to only a part the outer surface and/or inner surface of the porous dental zirconia article, the liquid composition comprising a whitening agent comprising a phosphorous containing component, the phosphorous containing component comprising a phosphate, phosphone or phosphine moiety, with the proviso that at least one P-O unit of the phosphate, phosphone or phosphine moiety is dissociable or able to otherwise interact with zirconia.The invention also relates to a dental zirconia article obtainable or obtained by such a process and a kit of parts comprising a container containing a certain liquid composition and a dental zirconia mill blank useful for producing a porous dental zirconia article.
