Method for manufacturing dental prostheses, comprising the following operations: defining a layered numerical representation of a dental prosthesis (11); for a first layer of the numerical representation, prepare a corresponding layer of a light sensitive liquid substance (6); selectively solidify the layer of liquid substance (6) to obtain a first sheet (7) having a geometry corresponding to the geometry of the first layer of the numerical representation; repeat the operations of preparing a layer of liquid substance (6) and selectively solidify the layer of liquid substance (6) for each subsequent layer of the numerical representation to obtain corresponding sheets (7); cause the mutual adhesion between said sheets (7); modify the composition of the liquid substance (6) after having solidified one of the sheets (7) and before solidifying the subsequent sheet (7), so as to modify one or more optical properties of the liquid substance (6).

A method for making an orthodontic appliance comprising: receiving, by a processor of a computer system, a three-dimensional digital model of an orthodontic appliance; determining, by the processor, a compensation factor to be applied when manufacturing the orthodontic appliance using the laser-based system, the determining the compensation factor including: aligning the three-dimensional digital model of the orthodontic appliance in a three-dimensional space with a predetermined position; determining a deviation of a position of a model groove base from a desired position of the model groove base, the compensation factor being based on the deviation and relating to an amount of material to be used during the manufacturing of the orthodontic appliance; causing the laser-based system to apply the compensation factor for manufacturing the orthodontic appliance.

The present invention provides an apparatus for manufacturing a dental restoration. The apparatus includes a first laser module, a powder supplying nozzle, a second laser module, a dust cleaning device and an air bearing device for holding the dental restoration. The second laser module includes a plurality of laser sources, and the laser sources disposed circumferentially around the first laser module, in which each laser source is equally spaced apart from one another. The present invention further provides a method for manufacturing the dental restoration, in which the method can be applied to a laser cladding process or a laser milling process.

A method for making a rapid prototype of a patient's mouth to be used in the design and fabrication of a dental prosthesis. The method takes an impression of a mouth including a first installation site having a dental implant installed in the first installation site and a gingival healing abutment having at least one informational marker attached to the dental implant. A stone model is prepared based on the impression, including teeth models and model markers indicative of the at least one informational marker. The model is scanned. Scan data is generated from the scanning. The scan data is transferred to a CAD program. A three-dimensional model of the installation site is created in the CAD program. The at least one informational marker is determined to gather information for manufacturing the rapid protocol. Rapid prototype dimensional information is developed. The rapid prototype dimensional information is transferred to a rapid prototyping machine which fabricate a rapid prototype of the patient's dentition as well as a dental implant analog position.

A device for trimming a dental splint (1) comprises a spatially movable holder (2) for the dental splint (1), a suction device (3), a laser (4) and a computation unit (5). In a device of the aforementioned kind that can be used with a minimum of control complexity and preparation for the user to precisely trim dental splints despite the use of conventional components, the laser (4) is stationary, a camera (6) for determining the position of the dental splint (1) is provided, and the holder (2) comprises a platform (7) at least portions of which are thermostable and a stop (8) for the force-locked and play-free mounting of the dental splint (1), which is free from a deep-drawing mold.

A workpiece is disclosed for use in making a dental device. The workpiece may have a ring-shaped frame, and a base form of the dental device additively manufactured inside the ring-shaped frame. The workpiece may also have at least one connector extending between the base form and the ring-shaped frame.

A method for making an orthodontic bracket comprising: receiving, by a processor of a computer system, a three-dimensional digital model of an orthodontic bracket; determining, by the processor, a compensation factor to be applied when manufacturing the orthodontic bracket using the laser-based system, the determining the compensation factor including: aligning the three-dimensional digital model of the orthodontic bracket in a three-dimensional space with a predetermined position; determining a deviation of a position of a model groove base from a desired position of the model groove base, the compensation factor being based on the deviation and relating to an amount of material to be used during the manufacturing of the orthodontic bracket; causing the laser-based system to apply the compensation factor for manufacturing the orthodontic bracket.

The present invention describes a dental kit-of-parts comprising an implant abutment having at least a surface, a through hole configured to accommodate at least part of a screw shaft therein, and is configured to be connected to a dental implant implanted in a jawbone; a dental restoration having at least an inner surface and an outer surface, a channel through which a tool is insertable, and is configured to be connected to the implant abutment via the inner surface; and a screw having a screw head, a threaded screw shaft, wherein the diameter of the screw head is larger than the diameter of the screw shaft, and is configured to connect a pre-assembly including the implant abutment and the dental restoration to the dental implant. The pre-assembly is so configured as to comprise therein a recess that encloses at least the screw head, whereby the screw is a captive screw. In the pre-assembly, the implant abutment and dental restoration are merged via the inner surface of the implant abutment and the inner surface of the dental restoration forming an interface therebetween at least partially intersecting an outer surface of the pre-assembly. Further, the channel of the dental restoration has a diameter smaller than a diameter of the screw head of the screw and is configured to connect the outer surface of the dental restoration to the recess. Also, a method of manufacturing a dental kit-of-parts is described with the step of forming a pre-assembly including the implant abutment and the dental restoration, including: aligning the implant abutment and the dental restoration; positioning the screw between the implant abutment and the dental restoration and assembling the implant abutment and the dental restoration via the surface of the implant abutment and the inner surface of the dental restoration, with the screw head positioned in the recess and at least part of the screw shaft accommodated in the through hole of the implant abutment.

The present disclosure provides a dental bridge intermediary structure comprising a superstructure (203) and a reference plate (200), with distance pins (202) connecting the two. A method for producing a dental bridge superstructure (203) is also provided.

The present invention relates to a laser three-dimensional processing system, and more particularly, to a laser three-dimensional processing system capable of forming a pattern or cutting, marking, welding, milling or welding while scanning an object for dental prosthesis.

The laser three-dimensional processing system of the present invention employs a laser scanning method in which laser beam is formed on an object by using a reflection mirror without a laser head, thereby improving the processing speed from several tens to hundreds of times. That is, instead of transferring a heavy laser head, transferring a few tens of grams of a light reflective mirror can reduce the inertia of several tens to hundreds of times, resulting in a high speed, high precision curve and three dimensional processing can be performed.