A microwave furnace has a furnace chamber formed between a chamber housing and a sintering platform for an object to be sintered. A microwave source is arranged for emitting microwaves into the furnace chamber. The microwave furnace further has a susceptor that comprises a material which over a temperature range of the material of at least 23 C to 700 C couples into microwaves. The susceptor and the furnace chamber are movable relative to each other between a first position, in which the susceptor is positioned relative to the furnace chamber, and a second position in which the susceptor is positioned further retracted from the furnace chamber relative to the first position. The invention helps providing a zirconia material with a relative homogeneous material structure.

A dental abutment core with a prosthetic connection, a pillar and a shoulder located between the prosthetic connection and the pillar. The pillar has anti-rotational elements for preventing a custom body from rotating with respect to the dental abutment core. The pillar has a first portion adjacent to the shoulder, a second portion adjacent to the first portion, and a third portion farthest from the shoulder. A cross section of at least part of the first portion is circular and has an outer diameter which is lower than a cross section dimension of the second portion. The anti-rotational elements are located in the third portion. A method for manufacturing a dental abutment with such dental abutment core is also described.

A dental abutment core with a prosthetic connection, a pillar and a shoulder located between the prosthetic connection and the pillar. The pillar has anti-rotational elements for preventing a custom body from rotating with respect to the dental abutment core. The pillar has a first portion adjacent to the shoulder, a second portion adjacent to the first portion, and a third portion farthest from the shoulder. A cross section of at least part of the first portion is circular and has an outer diameter which is lower than a cross section dimension of the second portion. The anti-rotational elements are located in the third portion. A method for manufacturing a dental abutment with such dental abutment core is also described.

A container and apparatus for preparing dental prosthetics. The container comprises a body having an interior and a top edge, a penetrable lid sealably secured to the top edge and containing a quantity of glazing liquid mixture liquid less than a volume of the body and a quantity of gas having a density greater than air. The apparatus comprises the container, a lid penetrator operable to form at least one penetration through the lid at at least one dipping location, an arm adapted to hold at least one dental prosthetic and pass each dental prosthetic through the at least one penetration into and thereafter out of the glazing liquid mixture, and wherein the arm is adapted to move the at least one dental prosthetic in a drying path after dipping in the glazing liquid mixture so as to form a consistent glazing layer thereover.

A container and apparatus for preparing dental prosthetics. The container comprises a body having an interior and a top edge, a penetrable lid sealably secured to the top edge and containing a quantity of glazing liquid mixture liquid less than a volume of the body and a quantity of gas having a density greater than air. The apparatus comprises the container, a lid penetrator operable to form at least one penetration through the lid at at least one dipping location, an arm adapted to hold at least one dental prosthetic and pass each dental prosthetic through the at least one penetration into and thereafter out of the glazing liquid mixture, and wherein the arm is adapted to move the at least one dental prosthetic in a drying path after dipping in the glazing liquid mixture so as to form a consistent glazing layer thereover.

A dental restoration device includes a sleeve having an exterior surface and an interior pocket that is at least partially filled with a dental cement, and a crown having an exterior surface and an interior surface that is mated to the exterior surface of the crown and bonded thereto by an adhesive disposed between the exterior surface of the sleeve and the interior surface of the crown.

A dental cooling device is provided, comprising a muffle (12) and a medium (30) as cooling source. The medium (30), in particular a liquid medium (30), is stored at least in the outer region of the muffle (12) and has an evaporation temperature higher than the room temperature. The quantity of medium (30) is calculated in advance such that the enthalpy of evaporation of the medium is substantially destroyed or consumed when cooling the muffle (12) to the evaporation temperature.

The invention relates to a method for processing a dental material (28), in particular pressing and curing a dental material, by means of—a molding insert (30) that has a pre-pressing area (22) which adjoins a molding area (14, 16), wherein the pre-pressing area (22) is designed to receive the dental material (28), and—a pressing furnace with a firing chamber (10) for receiving the molding insert (30). The method has the following steps: —introducing the dental material (28) into the pre-pressing chamber (22); —heating the firing chamber (10), in which the molding insert (30) is located, pressing the dental material (28) towards the molding area (14, 16) using a pressing punch (26) by applying a force onto the pressing punch (26) during a first processing phase, wherein the pressing punch (26) is moved, and the pressing punch speed is detected as a speed profile dependent on the time; and adjusting the firing chamber (10), in particular cooling the firing chamber to a second temperature, during a second processing phase starting at a point in time at which the detected speed profile matches a first speed profile without reducing the force applied to the pressing punch (26).

Techniques are described for automating the design and manufacture a dental restoration appliance for restoring the dental anatomy of a patient. For example, a system processes a digital three-dimensional (3D) model of a future (desired) dental anatomy of a patient, the future dental anatomy representing an intended shape of at least one tooth of the patient. The system includes a landmark identifier configured to automatically compute, based on the digital 3D model of the future dental anatomy of the patient, one or more landmarks of the future dental anatomy of the patient. The system also includes a custom feature generator configured to automatically generate, based on the one or more landmarks, one or more custom appliance features for a dental appliance for restoring the at least one tooth of the patient. The system further includes a memory device configured to store a digital model of the dental appliance.

A sintering furnace for couponents made of a sintered material, in particular for dental components, having a furnace chamber having a chamber volume (VK). A heating device, a receiving space having a gross volume (VB) located in the chamber volume (VK) and delimited by the heating device, and a useful region having a useful volume (VN) located in the gross volume (VB), are disposed in the furnace chamber. The furnace chamber has an outer wall consisting of walls having a wall portion to be opened for introduction of a component to be sintered having an object volume (VO) into the receiving space. In the furnace chamber the heating device has a thermal radiator having a radiation field which is disposed on at least one side of the receiving space. At least the useful volume (NV) disposed in the receiving space is disposed in the radiation field of the radiator.