A dental furnace having closed or closeable firing chamber (12), which is surrounded by thermal insulation (20) and which comprises at least one inlet terminal (22) and at least one outlet terminal (24). Via said two terminals, a gas, especially air, may be passed through the firing chamber (12) and/or may be discharged from the firing chamber (12), wherein a vacuum source (44) is provided, which is in direct or indirect communication with the outlet terminal (24) and via which the outlet terminal (24) may be set under vacuum pressure. At the outlet terminal (24), an especially T-shaped or Y-shaped connector (26) is attached. The connector (26) comprises two entrance ports (32, 24) and an exit (40), wherein the exit (40) is in communication with the vacuum source (44) and a first entrance port is in communication with the firing chamber (12), and especially is flange-mounted at the outlet terminal (24) thereof, and a second entrance port (34) is in communication with ambient air.

To provide a phosphate-based dental investment material which can used for metal and press ceramic and especially can impart the lubricity to the surface of a press ceramic, and a phosphate-based dental investment material which can be subjected to a flash heating for press ceramic, can obtain sufficient the hardening expansion, and can easily remove the investment material after press molding. A phosphate-based dental investment material of the present disclosure comprising a powder material and a liquid material, wherein the powder material contains (a) magnesium oxide: 5 to 20 wt. %; (b) ammonium dihydrogenphosphate: 8 to 25 wt. % and the liquid material contains (c) aqueous solution including a cation-treated colloidal silica.

To provide a phosphate-based dental investment material which can used for metal and press ceramic and especially can impart the lubricity to the surface of a press ceramic, and a phosphate-based dental investment material which can be subjected to a flash heating for press ceramic, can obtain sufficient the hardening expansion, and can easily remove the investment material after press molding. A phosphate-based dental investment material of the present disclosure comprising a powder material and a liquid material, wherein the powder material contains (a) magnesium oxide: 5 to 20 wt. %; (b) ammonium dihydrogenphosphate: 8 to 25 wt. % and the liquid material contains (c) aqueous solution including a cation-treated colloidal silica.

Modelling material which includes (a) at least one radically polymerizable monomer, (b) at least one initiator for the radical polymerization and (c) at least one inert component. The inert component (c) is soluble in the polymer formed by polymerization of the monomer (a), wherein the solubility of component (c) decreases as the temperature increases, with the result that a phase separation takes place above a particular temperature. The material is suitable in particular for the production of models of dental restorations for investment casting processes.

Modelling material which includes (a) at least one radically polymerizable monomer, (b) at least one initiator for the radical polymerization and (c) at least one inert component. The inert component (c) is soluble in the polymer formed by polymerization of the monomer (a), wherein the solubility of component (c) decreases as the temperature increases, with the result that a phase separation takes place above a particular temperature. The material is suitable in particular for the production of models of dental restorations for investment casting processes.

A manufacturing device (100) for manufacturing a dental object (101), including an electronic camera (103) for capturing an image data set (107) of the dental object (101) to be processed; and a controller (105) for determining the control data for manufacturing the dental object (101) based on the image data set (107).

A manufacturing device (100) for manufacturing a dental object (101), including an electronic camera (103) for capturing an image data set (107) of the dental object (101) to be processed; and a controller (105) for determining the control data for manufacturing the dental object (101) based on the image data set (107).

A wax model of a required coping is produced using CNC machining techniques based on a virtual model of the coping created from digital data obtained from the intraoral cavity. The dental coping is then fabricated from the wax model.

A wax model of a required coping is produced using CNC machining techniques based on a virtual model of the coping created from digital data obtained from the intraoral cavity. The dental coping is then fabricated from the wax model.

To provide a scale which makes it possible to adjust the temperature of a furnace so that a ceramic blank can be properly heated even if various conditions such as the combination of the used ceramic blank and investment, and the type and size of the furnace vary, the scale comprises: a scale part; and a base part, the scale part and the base part being formed of wax or resin, wherein the base part has a shape of protruding from part of the scale part, a size of the scale part is larger than that of the base part in a direction orthogonal to a protruding direction of the base part.