The invention relates to a sintering furnace (1) for components (15) made of a sintered material, in particular for dental components, comprising a furnace chamber (2) having a chamber volume (VK), wherein a heating device (5), a receiving space (9) having a gross volume (VB) located in the chamber volume (VK) and delimited by the heating device (5), and a useful region (10) having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber (2). The furnace chamber (2) has an outer wall (3) consisting of a plurality of walls having a wall portion (7) to be opened for introduction of a component to be sintered having an object volume (VO) into the receiving space (9). In the furnace chamber (2) the heating device (5) has a thermal radiator (6) having a radiation field (13) which is disposed on at least one side of the receiving space (9). At least the useful volume (NV) disposed in the receiving space (9) is disposed in the radiation field (13) of the radiator (6), wherein the maximum possible distance (d) of the component (15) to be sintered from the radiator (6) corresponds to at most twice the dimension (D.sub.y) of the maximum useful volume (VN).

A sintering furnace (1) for sintering dental workpieces (2), wherein the sintering furnace (1) has a heating element (3) with a receiving space (4) for receiving the workpiece (2) during sintering. The receiving space (4) is a portion of an interior space (5) within the heating element (3), and the heating element (3) comprises or consists of silicon carbide, wherein the heating element (3) is designed, at least in parts, as a slotted tube, and the slot (6) in the tube forming the heating element (3) has a helical configuration in a heating region (7), in which the heating element (3) encloses the receiving space (4).

A sintering furnace (1) for sintering dental workpieces (2), wherein the sintering furnace (1) has a heating element (3) with a receiving space (4) for receiving the workpiece (2) during sintering. The receiving space (4) is a portion of an interior space (5) within the heating element (3), and the heating element (3) comprises or consists of silicon carbide, wherein the heating element (3) is designed, at least in parts, as a slotted tube, and the slot (6) in the tube forming the heating element (3) has a helical configuration in a heating region (7), in which the heating element (3) encloses the receiving space (4).

The invention relates to a computer-implemented method for providing a set of layer-specific molding matrices for reconstructing layer-by-layer one or more teeth of a set of teeth in a patient’s oral cavity. The set of layer-specific molding matrices comprises two or more layer-specific molding matrices. Each of the layer-specific molding matrices is configured for being arranged on the set of teeth and for casting a different layer of the one or more teeth to be reconstructed with a layer-specific reconstruction material inserted into the respective layer-specific molding matrix. The respective layer-specific molding matrix defines a 3D geometric form of the respective layer being casted.

A mold for a dental appliance includes a dental arch portion and a beam. The dental arch portion is associated with teeth of a user. The dental arch portion includes a first distal portion, a second distal portion, and an incisor portion disposed between the first distal portion and the second distal portion. The beam extends from the first distal portion to the second distal portion. The beam includes a label portion disposed between the first distal portion and the second distal portion. The label portion forms a label for identification of the mold.

A mold for a dental appliance includes a dental arch portion and a beam. The dental arch portion is associated with teeth of a user. The dental arch portion includes a first distal portion, a second distal portion, and an incisor portion disposed between the first distal portion and the second distal portion. The beam extends from the first distal portion to the second distal portion. The beam includes a label portion disposed between the first distal portion and the second distal portion. The label portion forms a label for identification of the mold.

Provided is a silicate glass, a method for preparing a silicate glass-ceramics by using the silicate glass, and a method for preparing a lithium disilicate glass-ceramics by using the silicate glass, and more particularly, to a method for preparing a glass-ceramics that has a nanosize of 0.2 to 0.5 μm and contains lithium disilicate and silicate crystalline phases. A nano lithium disilicate glass-ceramics containing a SiO.sub.2 crystalline phase includes: a glass composition including 70 to 85 wt % SiO.sub.2, 10 to 13 wt % Li.sub.2O, 3 to 7 wt % P.sub.2O.sub.5 working as a nuclei formation agent, 0 to 5 wt % Al.sub.2O.sub.3 for increasing a glass transition temperature and a softening point and enhancing chemical durability of glass, 0 to 2 wt % ZrO.sub.2, 0.5 to 3 wt % CaO for increasing a thermal expansion coefficient of the glass, 0.5 to 3 wt % Na.sub.2O, 0.5 to 3 wt % K.sub.2O, and 1 to 2 wt % colorants, and 0 to 2.0 wt % mixture of MgO, ZnO, F, and La.sub.2O.sub.3.

Provided is a silicate glass, a method for preparing a silicate glass-ceramics by using the silicate glass, and a method for preparing a lithium disilicate glass-ceramics by using the silicate glass, and more particularly, to a method for preparing a glass-ceramics that has a nanosize of 0.2 to 0.5 μm and contains lithium disilicate and silicate crystalline phases. A nano lithium disilicate glass-ceramics containing a SiO.sub.2 crystalline phase includes: a glass composition including 70 to 85 wt % SiO.sub.2, 10 to 13 wt % Li.sub.2O, 3 to 7 wt % P.sub.2O.sub.5 working as a nuclei formation agent, 0 to 5 wt % Al.sub.2O.sub.3 for increasing a glass transition temperature and a softening point and enhancing chemical durability of glass, 0 to 2 wt % ZrO.sub.2, 0.5 to 3 wt % CaO for increasing a thermal expansion coefficient of the glass, 0.5 to 3 wt % Na.sub.2O, 0.5 to 3 wt % K.sub.2O, and 1 to 2 wt % colorants, and 0 to 2.0 wt % mixture of MgO, ZnO, F, and La.sub.2O.sub.3.

Dental devices and systems and methods for making the same are provided. In at least one embodiment, a method for fabricating an arch-shaped device for coupling to a patient's mouth is provided. The method can include adjusting a denture form device to conform to a shape and fit of a patient's mouth. The method can also include using the denture form device to obtain an impression of the patient's mouth. The method can also include selecting an arch device and adapting that arch device to conform to a model of a patient's mouth. The method can also include a denture form device that can be combined with the arch device to form a complete denture.

Dental devices and systems and methods for making the same are provided. In at least one embodiment, a method for fabricating an arch-shaped device for coupling to a patient's mouth is provided. The method can include adjusting a denture form device to conform to a shape and fit of a patient's mouth. The method can also include using the denture form device to obtain an impression of the patient's mouth. The method can also include selecting an arch device and adapting that arch device to conform to a model of a patient's mouth. The method can also include a denture form device that can be combined with the arch device to form a complete denture.