According to one aspect of the present invention, a dental photopolymerizable composition includes: a (meth)acrylate compound; a filler; a photopolymerization initiator; and a phthalic acid derivative and/or a thiophene derivative, wherein a content of the phthalic acid derivative and/or the thiophene derivative is greater than or equal to 0.05% by mass and less than or equal to 0.25% by mass.

A three-dimensional printing system including a feed source of uncured filled resin material, a print head configured to apply discrete layers of a composition including upconversion phosphors, and a radiation source configured to irradiate layers of uncured filled resin material and deposited layers of the composition is provided. A method of three dimensionally printing a dental article is also provided.

A three-dimensional printing system including a feed source of uncured filled resin material, a print head configured to apply discrete layers of a composition including upconversion phosphors, and a radiation source configured to irradiate layers of uncured filled resin material and deposited layers of the composition is provided. A method of three dimensionally printing a dental article is also provided.

The invention relates to a method for generatively producing a dental molding for at least one of dental restoration and dental prostheses. The method comprises the following steps: a) providing at least one layer of a dispersion, particularly an aqueous dispersion, wherein the dispersion comprises at least one binder, and wherein the dispersion comprises ceramic particles and/or glass ceramic particles and/or powder metal particles; b) applying hardeners to the layer of dispersion in places for activating the at least one binder for hardening the layer of the dispersion in places, whereby a rough blank is obtained, particularly a green body, wherein at least two hardeners having different material composition from each other are used; and c) sintering the rough blank into the dental molding.

The invention relates to a method for generatively producing a dental molding for at least one of dental restoration and dental prostheses. The method comprises the following steps: a) providing at least one layer of a dispersion, particularly an aqueous dispersion, wherein the dispersion comprises at least one binder, and wherein the dispersion comprises ceramic particles and/or glass ceramic particles and/or powder metal particles; b) applying hardeners to the layer of dispersion in places for activating the at least one binder for hardening the layer of the dispersion in places, whereby a rough blank is obtained, particularly a green body, wherein at least two hardeners having different material composition from each other are used; and c) sintering the rough blank into the dental molding.

Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

A method for masking the appearance of a support structure underlying a highly translucent ceramic dental restoration s provided. The porous form of a zirconia ceramic dental restoration is treated with a liquid masking composition comprising 0.4 wt % to 50 wt % of one or more masking agents. The masking composition is applied to the internal surface of a restoration and a region of the facial surface of the restoration that is opposite the internal surface. After application of the masking compositions, treated zirconia restoration is sintered to greater than 98% theoretical density.

A three-dimensional printing system including a feed source of uncured filled resin material, a print head configured to apply discrete layers of a composition including upconversion phosphors, and a radiation source configured to irradiate layers of uncured filled resin material and deposited layers of the composition is provided. A method of three dimensionally printing a dental article is also provided.

A three-dimensional printing system including a feed source of uncured filled resin material, a print head configured to apply discrete layers of a composition including upconversion phosphors, and a radiation source configured to irradiate layers of uncured filled resin material and deposited layers of the composition is provided. A method of three dimensionally printing a dental article is also provided.