4 results about "Dental ceramics" patented technology

A dental ceramic blank comprising at least one organic compound, characterized in that the blank has an open-pore ceramic framework, wherein the open-pore ceramic framework is selected from an open-pore dental ceramic framework comprising zirconia, aluminum oxide, a mixed oxide comprising zirconia, and / or silicon carbide, wherein the open-pore ceramic framework contains 2 to 50 wt.% of at least one organic compound selected from a) comprising at least one polymerizable monomer and / or a mixture of polymerizable monomers, thermal initiators comprising peroxide and / or an azo compound or a redox system comprising a peroxide, and a reducing agent selected from ascorbic acid, an ascorbic acid derivative, barbituric acid or a barbituric acid derivative, sulfinic acid, a sulfinic acid derivative or a redox system (aa) barbituric acid or thiobarbituric acid or a barbituric acid or thiobarbituric acid derivative and (bb) at least one copper salt or copper complex and (cc) at least one compound with an ionic halogen atom, particularly preferably a redox system comprising 1-benzyl-5-phenylbarbituric acid, copper acetylacetonate and benzyldibutylammonium chloride, and / or b) a polymer of the aforementioned monomers polymerized in the blank with respect to the overall composition of the dental ceramic blank.

The invention belongs to the technical field of dental restoration materials, and particularly relates to a simulated dental ceramic restoration based on computer color matching and a preparation method of the simulated dental ceramic restoration. A green body which is matched with an abutment tooth in color and achieves continuous gradual change is prepared by applying a 3D printing technology, preparation of the dental ceramic restoration is achieved through heat treatment, and the obtained dental ceramic restoration can achieve accurate color matching and gradual change effects.

A method for coloring a dental ceramic (10) includes a step of contacting a coloring liquid (30) with the dental ceramic (10). The coloring liquid (30) contains at least two types of metal ions in which a difference between standard oxidation-reduction potentials is 0.5 or more and 4.0 or less.

The present invention provides a dental ceramic coloring liquid with which a decrease in the mechanical strength of a dental ceramic after sintering can be reduced, and that can impart masking properties while having good preservation stability. The present invention relates to a dental ceramic coloring liquid comprising an organosilicon compound. The organosilicon compound is preferably hydrophilic. The organosilicon compound is preferably a silicone compound. The organosilicon compound is preferably an alkylsilane compound.