A dental milling machine is provided with a tool which is guided in a chuck. A workpiece arm is mounted opposite the tool to be able to be moved at least in the direction of the spindle axis. With a control device it can be moved in relation to the workpiece, especially by means of a drive motor of the workpiece arm. The workpiece arm has an abutment element, whereby the control device moves the tool and the abutment element towards each other until they abut each other. The control device can be used to detect abutment of the abutment element with respect to the tool, in particular with respect to its tip, in particular by decelerating the (relative) movement of the tool and the abutment element towards each another, upon contact of the tool and the abutment element. This position may be signaled as a reference position and, especially may be stored.

A multi-sensor system (100) having a plurality of dental sensors (101-S; 101-M) for arrangement in an oral cavity, including at least one slave dental sensor (101-S) for acquiring measurement data in an oral cavity with a transmitting device (103) for transmitting the measurement data; and a master dental sensor (101-M) with a receiving device (109-M) for receiving the measurement data from the slave dental sensor (101-S).

The invention is a system and method for forming a dental appliance. A control module may be configured to receive data concerning a dental model and determine a toolpath for creating a pre-cut substrate based on the data. A cutting module may be configured to create the pre-cut substrate based on the toolpath. A forming module may be configured to apply a second substrate to the pre-cut thermoforming substrate received from the cutting module and form a dental appliance from the pre-cut substrate and the secondary substrate. The method may include receiving data concerning a dental model, determining a toolpath for cutting a substrate into a pre-cut thermoforming substrate based on the data, pre-cutting a first substrate based on the toolpath to form a pre-cut substrate, applying a second substrate to the pre-cut substrate, and thermoforming a dental appliance from the pre-cut substrate and the second substrate.

The invention is a system and method for forming a dental appliance. A control module may be configured to receive data concerning a dental model and determine a toolpath for creating a pre-cut substrate based on the data. A cutting module may be configured to create the pre-cut substrate based on the toolpath. A forming module may be configured to apply a second substrate to the pre-cut thermoforming substrate received from the cutting module and form a dental appliance from the pre-cut substrate and the secondary substrate. The method may include receiving data concerning a dental model, determining a toolpath for cutting a substrate into a pre-cut thermoforming substrate based on the data, pre-cutting a first substrate based on the toolpath to form a pre-cut substrate, applying a second substrate to the pre-cut substrate, and thermoforming a dental appliance from the pre-cut substrate and the second substrate.

The present invention relates to a process for generating a CAM dataset, having the steps of providing (S201) a digital CAD dataset for a dental prosthesis having first reference data for a first spatial reference geometry; providing (S202) a digital CAM dataset having second reference data for a second spatial reference geometry; and integrating (S203) the CAD dataset in the CAM dataset by aligning the first spatial reference geometry of the CAD dataset with the second spatial reference geometry of the CAM dataset.

A method is provided for producing a dental prosthesis from a blank using a CAD/CAM device, wherein the blank consists partially of base material and partially of tooth material, and a boundary surface between these materials is formed as a wave, the wave crests and wave valleys of which alternate with each other along the outer periphery of the blank. The apex of each wave crest extends substantially radially with respect to the blank. The CAD/CAM device fixes the position of a retention part, which serves to fasten the prosthesis to the alveolar crest of a patient, in particular of an external telescope, of a cover of a bar, or of an abutment in the prosthesis in such a way that it passes through the boundary surface. The retention part is fastened by means of gluing or incorporation by polymerisation.

A cutting apparatus includes a container including a holder in which a workpiece having an adapter attached thereto is held, a reading target applied to the adapter, an optical sensor to optically read the reading target, a memory storing a position coordinate of the holder and a theoretical position coordinate of the reading target associated with the position coordinate of the holder, a reader to read the reading target using the optical sensor to acquire an image of the reading target, a calculator to determine, in accordance with the image acquired by the reader, an actual position coordinate of the reading target to calculate a correction value from a difference between the actual position coordinate and the theoretical position coordinate, and an updater to update, using the correction value calculated by the calculator, the position coordinate of the holder stored in the memory.

An apparatus and method for bending or shaping orthodontic archwires or other medical devices into a complex, patient individual shape is described. The apparatus comprises of two moveable, compact, manipulators with, in total, at least one revolute joint defining at least one rotation axes and at least one prismatic joints defining at least one translation axes. Gripping tools are provided on the manipulators.

An apparatus and method for bending or shaping orthodontic archwires or other medical devices into a complex, patient individual shape is described. The apparatus comprises of two moveable, compact, manipulators with, in total, at least three revolute joints defining three rotation axes and at least three prismatic joints defining at least three translation axes. Gripping tools are provided on the manipulators. The two manipulators are arranged to allow a relative movement in six degrees of freedom. A reduced complexity embodiment is also described having only one or two revolute joints.

The present invention relates to a method for producing a dental restoration, comprising the steps of generating (S101) a three-dimensional dataset for describing the spatial shape of the dental restoration in a blank; adding (S102) the spatial shape of the dental restoration to a dataset of the blank; and integrating (S103) spatial data for holding pins for fixing the dental restoration into the three-dimensional dataset of the blank by a machine learning algorithm (103).