Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).

Abstract: A method of making a customized dental blank. The method has steps of obtaining from a dental practitioner a first color scheme and a different second color scheme as well as a first dimensional information for the first color scheme and a different second dimensional information for the second color scheme. The first and second dimensional information each relate to a size and/or a location within dimensions of the dental blank. The method further has the step of manufacturing the customized dental blank which has a first portion based on the first dimensional information according to the first color scheme and a second portion based on the second dimensional information according to the second color. Further the method has the step of providing the dental practitioner with the customized dental blank. The method helps facilitating the making of a dental restoration from a blank.

Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).

Abstract: The present invention is directed to a process for producing a sintered lithium disilicate glass ceramic dental restoration out of a porous 3-dim article, the process comprising the step of sintering the porous 3-dim article having the shape of a dental restoration with an outer and inner surface to obtain a sintered lithium disilicate ceramic dental restoration, the sintered lithium disilicate glass ceramic dental restoration comprising—Si oxide calculated as SiO2 from 55 to 80 wt.-%, —Li oxide calculated as Li2O from 7 to 16 wt.-%, —Al oxide calculated as Al2O3 from 1 to 5 wt.-%, and—P oxide calculated as P2O5 from 1 to 5 wt.-%, wt.-% with respect to the weight of the dental restoration, the sintering being done under reduced atmospheric pressure conditions, the reduced atmospheric pressure conditions being applied at a temperature above 600° C.

Abstract: The invention relates to a dental mill blank comprising a pre-sintered porous zirconia material, the porous pre-sintered zirconia material showing a N2 adsorption of isotherm type IV according to IUPAC classification, the porous pre-sintered zirconia material having a Vickers hardness from about 25 to about 150, the dental mill blank comprising means for reversible attaching it to a machining device. The invention also relates to a process of producing a zirconia dental article comprising the steps of providing a dental mill blank comprising a porous pre-sintered zirconia material, placing the dental mill blank in a machining device, machining the porous zirconia material and to a dental article obtained by such a process.

Abstract: A method of capturing data from a patient's dentition with the steps of positioning a first optical sensor relative to patient's dentition, capturing the shape of a tooth in the patient's dentition, independent from capturing the shape, measuring a color at a location on the tooth, and providing a correlation between the location of the color and a coordinate in the captured shape. The invention helps providing a dental restoration at a relatively high optical, mechanical, and geometric quality.

Abstract: The invention relates to a dental mill blank comprising a pre-sintered porous zirconia material, the porous pre-sintered zirconia material showing a N2 adsorption of isotherm type IV according to IUPAC classification, the porous pre-sintered zirconia material having a Vickers hardness from about 25 to about 150, the dental mill blank comprising means for reversible attaching it to a machining device. The invention also relates to a process of producing a zirconia dental article comprising the steps of providing a dental mill blank comprising a porous pre-sintered zirconia material, placing the dental mill blank in a machining device, machining the porous zirconia material and to a dental article obtained by such a process.

Abstract: Aerogel, calcined articles, and crystalline articles comprising ZrO2. Exemplary uses of the crystalline metal oxide articles include dental articles (e.g., restoratives, replacements, inlays, onlays, veneers, full and partial crowns, bridges, implants, implant abutments, copings, anterior fillings, posterior fillings, and cavity liner, and bridge frameworks) and orthodontic appliances (e.g., brackets, buccal tubes, cleats, and buttons).

Abstract: A method is provided for making a dental restoration at a certain tooth color shade. The method comprises joining a veneer precursor, a framework and a compensation material to form the dental restoration. The tooth color shade is selected from among a continuous range of tooth color shades, but individual components of the dental restoration may be selected from discrete color shades. Further, a dental restoration, a kit and a use of the kit are provided in accordance with the invention.

Abstract: A system and method for making a layered dental appliance. The system can include a first portion comprising a negative of a first layer of a layered dental appliance, and a second portion comprising a positive shape of a second layer of the layered dental appliance. The method can include providing a mold comprising a negative of an outer shape of a layered dental appliance, and positioning a slurry in the mold, forming a first layer of the layered dental appliance. The method can further include providing a solid structure comprising a positive shape of a second layer of the layered dental appliance, and pressing the solid structure into the slurry in the mold.

Abstract: The invention relates to a dental milling block (1) comprising a dental article (2) having an outer surface, the dental article having been produced based on personalized data, wherein the outer surface of the dental article is at least partially covered with a surrounding material. The invention further relates to a process of producing a dental milling block, the process comprising the steps of: •a) providing a personalized Data Set C containing geometry data of the dental article and colour data related to said geometry data, •b) generating a layer of hardenable material on a surface, •c) applying a colour agent to the layer of hardenable material of step b), wherein the colour agent is applied to at least some regions of those areas of the layer of hardenable material which are related to the geometry data of the dental article, •d) consolidating the result obtained in step c) thereby obtaining an at least partially hardened layer of material.

Abstract: The invention relates to a process for producing a dental appliance, the process comprising the steps of a) providing a mixture of a liquid, an inorganic binder precursor being able to undergo a sol/gel reaction and a glass or glass ceramic powder, b) casting the mixture into a mold, c) drying the cast mixture in the mold to obtain a machinable dental appliance, d) optionally machining the dental appliance to obtain a dental workpiece, e) optionally removing the dental appliance or dental workpiece from the mold, f) optionally sintering the dental appliance or dental workpiece and to a dental appliance obtainable by such a process.

Abstract: The invention describes a dental article comprising zirconium oxide and at least two different coloring substances A and B, substance A showing a light emission in the range of about 470 nm to about 510 nm and substance B showing a light absorption in the range from about 520 nm to about 750 nm. The invention also relates to different processes of producing the dental article e.g. by a process comprising a casting step, a pressing step, or an infiltration step and to the use of certain compositions containing either substance A or substance B for producing such a dental article.

Abstract: A system and method for making a layered dental appliance. The system can include a first mold comprising a negative of a first layer of a layered dental appliance, a second mold comprising a negative of a second layer, and a dental core dimensioned to be at least partially received in the first mold and the second mold. The method can include positioning a first slurry in the first mold, and pressing the dental core into the first slurry to form a first article comprising the dental core and a first layer formed from the first slurry. The method can further include removing the first article from the first mold, positioning a second slurry in the second mold, and pressing the first article into the second slurry to form a second article comprising the dental core, the first layer, and a second layer formed from the second slurry.

Abstract: Methods for making a layered dental appliance. Some methods can include providing a solid structure (e.g., a die or a dental core, such as a fully sintered ceramic dental core) having a desired outer shape, and applying a first slurry to the solid structure to form a first free form layer on the solid structure. The method can further include solidifying the first free form layer on the solid structure, and machining the solidified first free form layer to a desired shape to form a first article comprising the solid structure and a first shaped layer. The method can further include applying, solidifying, and machining a second layer in a similar way to form a second article comprising the solid structure, the first shaped layer, and a second shaped layer. In some methods, the free form layers are not exposed to a high temperature prior to being machined.

Abstract: The invention relates to a chewing gum coated with at least one layer, the layer comprising slightly water-soluble calcium salt and/or a composite thereof.

Abstract: A system and method for making a layered dental appliance. The system can include a mold comprising a negative of an outer shape of a layered dental appliance, and a dental core dimensioned to be at least partially received in the mold. The method can include positioning a first slurry in the mold, and pressing the dental core into the first slurry in the mold to form a first article comprising the dental core and a first layer formed from the first slurry. The method can further include removing the first article from the mold, and firing the first article. The method can further include positioning a second slurry in the mold, and pressing the first article into the second slurry in the mold to form a second article comprising the dental core, the first layer, and a second layer formed from the second slurry.

Abstract: The present disclosure relates to a dental ceramic article comprising ceramic components, the ceramic components having ZrO2 and Al2O3 and at least one component comprising Mn, Er or mixtures thereof, Al2O3 being present in an amount below about 0.15 wt.-% with respect to the weight of the ceramic article. The present disclosure relates also to kit of parts comprising a ceramic article and a colouring solution and processes for producing a dental ceramic article.

Abstract: The present invention relates to a composition for attaching a dental facing on a dental support structure comprising water, a glass and/or glass ceramic material, a rheological modifier with a molecular weight above about 500,000. The invention also relates to a process comprising the steps: providing a dental facing precursor and a dental support structure, both having an upper and a lower surface, attaching the dental facing precursor with its lower surface to the upper surface of the dental support structure, comprising the step of placing a mating composition between the lower surface of the dental facing precursor and the upper surface of the dental support structure and to the use of the inventive composition for producing dental restorations.

Abstract: Methods for making a layered dental appliance. Some methods of the present disclosure can include providing a solid structure (e.g., a die or a dental core, such as a fully sintered ceramic dental core) having a desired outer shape, and applying a slurry to the solid structure to form a first free form layer on the solid structure. The slurry can include at least one of a glass and a glass ceramic. The method can further include firing the first free form layer on the solid structure, and machining the fired first free form layer to a desired shape to form a first article comprising the solid structure and a first shaped layer. Some methods can further include additional applying, firing, and machining steps to achieve a resulting dental appliance having a desired number of layers. Some methods can include removing the solid structure.