The present invention relates to a method for additive manufacturing of a position sensitive colored ceramic article comprising: a) providing at least one flowable ceramic component; b) forming a green body by sequential deposition of the ceramic component provided in step a) and optionally a support material not intended to be part of the final article; c) position sensitive application of a coloring substance in a solvent to at least a part of the surface of the green body formed in step b), wherein the coloring substance is applied simultaneously to the sequential deposition; d) heat treatment or curing of at least a part of the green body surface obtained in step c); wherein the method steps a)-d) are at least performed once; e) optionally removing the support material from the green body; and f) sintering the green body to obtain the ceramic article; wherein the coloring substance is a dyestuff according to ISO 18451-1:2019(E). In addition, the present invention relates to a system adapted to perform the method and a control data set configured, when implemented in an additive manufacturing system, to cause the system to execute the steps of the inventive method.

A method for manufacturing a dental or medical tool the method comprising the steps of positioning a pre-fluted blank 14 including a stem 24 and a shank 22 within a machine 30, using a probe to identify a position and/or an orientation of at least one flute 26 of the pre-fluted blank 14 and/or the position and/or orientation of an orientation indicator 28 of the pre-fluted blank 14, and using the machine 30 to form a cutting end region 36 at the end of the stem 24 of the pre-fluted blank 14 remote from the shank 22, the flute 26 extending into the cutting end region 36, the machine 30 being controlled to ensure that the cutting end region 36 is correctly orientated relative to the flutes 26 of the pre-fluted blank 14.

A dental blank for the manufacture of a dental restoration. The dental blank comprises a dental block and an insert with an opening facing toward an outer surface of the dental blank. The insert comprises at least one positioning element for the positioning of an abutment.

A method of producing a dental prosthesis produced from a gum part, and prosthetic teeth arranged on the gum part and connected to the gum part. The surface of the dental prosthesis is surface-treated, the surface treatment of the dental prosthesis involving a solvent, and the solvent containing at least one chlorohydrocarbon and at least one methane nitroderivative.

A dental prosthesis is provided, manufactured from a monobloc or multibloc prosthesis blank (10), which is composed of a gum-colored material (14) and a tooth-colored material (12), which materials (12, 14) are bonded to each other by bonding, polymerization and/or one-piece manufacture. The boundary surface (16) between the materials is wave-shaped comprising alternating grooves (22) and ribs (24) in the course of the dental arch, and radial in an oral-vestibular direction in the region of the anterior teeth (33) to be created. The boundary surface (16), at least in the region of the molars (26)—again as viewed in the oral vestibular direction—has parallel grooves (22) and ribs (24) forming troughs and crests of the waveform, or grooves (22) and ribs (24) such that they extend in deviation from parallel by at most 10 degrees, in particular at most 5 degrees, at least in the region of the molars (26).

The present disclosure describes technical solutions to various technical problems facing generation of an angulated screw channel for dental implant. An improved screw channel model may be generated based on various inputs. The inputs may include dental implant parameters such as a screw channel length and a variable height. The inputs may also include dental screw parameters associated with a dental screw type, such as a screwhead diameter and a screwhead height. Using these inputs, the improved angulated screw channel model may be generated. By generating a model based on these input parameters, the resulting screw channel model allows the dental screw to be inserted and secured while reducing or minimizing a screw hole size and a screw channel volume.

The invention relates to a method for manufacturing a dental prosthetic assembly. The dental prosthetic assembly comprises a first and a second element. The first element comprises a first connection portion with a reception configured to establish a mechanical connection between the first and the second element by receiving a protrusion of a second connection portion comprised by the second element.

Dental devices and systems and methods for making the same are provided. In at least one embodiment, a computer readable medium containing instructions for fabricating an arch-shaped device for coupling to a patient's mouth is provided. The instructions can include using a denture form device to obtain an impression of a patient's mouth. The instructions can also include selecting an arch device and adapting that arch device to conform to a model of a patient's mouth, such that the adapted arch device may be used to ultimately form a denture.

The present disclosure relates to a dental cutting zirconia blank having high relative density for preparing a dental restoration. More specifically, the present disclosure relates to a dental cutting zirconia blank which consists of a zirconia ceramics used for the cutting with the CAD/CAM system in the dental field, a semi-sinter zirconia blank (pre-sintered body) of which has high relative density, and which can provide a prosthesis device having high aesthetics after sintering. There is provided a dental cutting zirconia blank wherein the dental cutting zirconia blank has at least one layer consisting of zirconia powder containing 4 to 15 mol % of yttria or erbium oxide as a stabilizer, a relationship among pre-sintering density, final-sintering density and relative density satisfies the following relation:
54≤Relative density(%)={(Pre-sintering density)/(Perfect-sintering density)}×100≤70.

A system for forming a product with different size particles is disclosed. The system comprises at least one print head region configured to retain a first group of print heads configurable to additively print at least a first portion of the product with a first material and a second group of print heads configurable to additively print at least a second portion of the product with a second material. The described system may also comprise a processor configured to regulate the first group of print heads and the second group of print heads to distribute the first material and the second material. A method of making an object by ink jet printing using the disclosed system is also disclosed.