Abstract: 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.

Abstract: A device and method and system for utilizing confocal measurement and an optical arrangement to produce 3D color images. A color measurement optical path and a 3D measurement optical path may coincide at least at an object side of the device, and a minimal amount of light is extracted from a monitoring beam for color measurement without affecting 3D measurement.

Abstract: The present invention relates to a method of preparing a digital 3D model suitable to be generated and post-processed with an additive manufacturing system (1) comprising: an additive manufacturing apparatus (2) for generating the 3D object (3) corresponding to the prepared digital 3D model, attached to a platform (4) which can be gradually moved upwards, out of a fluid resin (5a) in a vat (6); and at least one post-processing apparatus (7) for performing at least one of washing, drying and curing the 3D object (3) received and maintained in the state attached to the platform (4) during the post-processing, the method comprising: a step of providing the digital 3D model; the method being characterized by further comprising: a step of determining fluid-collecting, basin-like, open regions (8) or fluid-sucking, dome-like, open regions (9) of the digital 3D model orientated in said state relative to the platform (4), and a step of including at least one drain channel (10) and/or at least one vent channel (11) in

Abstract: The resent invention relates to a method of x-ray projection geometry calibration in x-ray cone beam computed tomography, the method comprising: at least one step (S1) of obtaining two-dimensional x-ray images (1) or a sinogram (2) of at least a part of an object (3), generated through relatively rotating around the object (3) a detector and an x-ray source projecting x-rays towards the detector; characterized by further comprising: at least one step (S4) of detecting in the two dimensional x-ray images (1) or the sinogram (2) at least one feature (3a) of the object (3) by using a trained artificial intelligence algorithm; and at least one step (S5) of creating, based on the detection, calibration information which defines the geometry of the x-ray projection.

Abstract: A method for producing a tooth replacement part to be secured on an implant, based on a 3D model of the tooth replacement part with a surface and with a continuous screw channel with an initial shape in the form of a cylindrical barrel, with a first and a second end, wherein a cross sectional area of the screw channel is designed to be constant and/or to increase in size towards the second end of the screw channel. A 3D model of an inlay with a jacket surface, an upper face and a lower face is generated. A part of the surface of the 3D model of the tooth replacement part that is cut out through the second end of the final shape of the screw channel is used as the upper face and the jacket surface is configured as a negative form of a part of the final shape of the screw channel that adjoins the second end.

Abstract: The invention relates to a method for producing a tooth replacement part from a blank using a CAM processing device. The method includes a step of varying the orientation of a blank body in a processing position relative to two processing tools. The varying includes a first orienting of the blank body and processing tools relative to one another from a first processing orientation into a second processing orientation. In so doing, the orientation of the blank body relative to the two processing tools in the first processing orientation in relation to the orientation of the blank body relative to the two processing tools in the second processing orientation is pivoted at a first pivot angle.

Abstract: Dental device (1) for ridge preservation around the socket (2) of an extracted tooth and for promoting jaw bone regeneration inside the socket (2) of the extracted tooth, the dental device (1) comprising: a screw (3) which is entirely made of a biodegradable material to eliminate the need for a removal surgery, wherein the screw (3) is adapted for tight fixation within the jaw bone (4) in the socket (2) to prevent micromovements during bone-tissue regeneration, wherein the screw (2) has a length such that its top is, in the inserted state, flush with the alveolar ridge (5) around the socket (2) to promote full bone regeneration inside the socket (2), and wherein the screw (3) has a hollow (6) and pores (7), wherein the diameters of the pore (7) is substantially equal to or larger than 20 micrometers.

Abstract: A stereolithography apparatus (1) for generating a three-dimensional object (2) from a photocurable substance (3), comprising: a vat (4) for storing the photocurable substance (3); and a platform (5) for supporting the three-dimensional object (2), wherein the platform (5) is movable relative to the vat (4); an optical unit (6) for sequentially projecting layered images towards the photocurable substance (3) for hardening the photocurable substance (3) deposited between the three-dimensional object (2) and the bottom of the vat (4); further comprising: an oscillation unit (7) adapted to horizontally oscillate the vat (4) concomitantly with the projection of the layered images with a substantially constant amplitude that is smaller than the pixel size of the layered images in the horizontal direction for preventing adhesion of the three-dimensional object (2) to the bottom of the vat (4).

Abstract: The present invention relates to a dental device (1) for removing a dental implant (2) which is at least partially or fully osseointegrated with a patient's jaw (3), comprising: a head portion (6) for rotatingly holding a dental tool (7) for unscrewing the dental implant (2); and a driving means for applying a torque to the dental tool (7) for unscrewing the dental implant (2); characterized in that the driving means is further adapted to apply pulsed torques (?; ?1, ?2, ?3) to the dental tool (7) to unscrew the dental implant (2).

Abstract: A method, system and a computer readable storage media for operating dental machines through an augmented reality control interface A hands free interface may enable the control of a dental machine during dental treatment by using dexterous parts of the body other than the upper limbs (e.g. by using the lower limbs) on a first user/control interface to send instructions corresponding to a second user/control interface that is different from the first user/control interface.

Abstract: Material unit for an additive manufacturing device (AM) having a resin vat, wherein the resin vat comprises a base which is transparent at least in sections, wherein the resin vat is connected to a holder for a reservoir, and wherein the holder is configured such that resin (R) emerging from an outlet of a reservoir held by said holder can flow into the resin vat.

Abstract: Component carrier for an additive manufacturing device, wherein the component carrier comprises a construction surface, on which a component to be manufactured is disposed during the operation of the manufacturing device, wherein the component carrier comprises a sealing surface which radially surrounds the construction surface, and method for post-processing a component manufactured according to an additive manufacturing process using such a component carrier.

Abstract: A method, system and computer readable storage media for proposing and visualizing orthodontic treatments. A patient may use a mobile device such as a smart phone to quickly and inexpensively visualize an orthodontic treatment for misaligned teeth and overlay it on a 3D model of the face and jaw, with a depth sensor being used to detect depth information. The orthodontic treatment may also be visualized in an augmented manner for a clinician. 3D data of the orthodontic treatment may be used for further analysis or fabrication of a treatment appliance.

Abstract: The present invention relates to an apparatus (20) for real-time visualizing a movement of a lower jaw (12) versus an upper jaw (14) in a craniomaxillofacial area (16) of a patient (18) in dental diagnostics, comprising: an input interface (32) for receiving a two-dimensional image signal (26) of the craniomaxillofacial area of the patient from a camera (40) and a three-dimensional jaw model (28) of the craniomaxillofacial area of the patient being precalculated based on volume data; a registration unit (34) for registering the three-dimensional jaw model with the two-dimensional image signal in a first jaw position of the lower jaw versus the upper jaw and in a second jaw position of the lower jaw versus the upper jaw; an imaging unit (36) for generating a two-dimensional depth-view (30) of the craniomaxillofacial area from the three-dimensional jaw model based on the conducted registrations and the two-dimensional image signal, said two-dimensional depth-view including a structure underlying an image area o

Abstract: A method and system for dynamically providing visual feedback about a quality of data collected during intra-oral scanning Images or light patterns are projected onto an object such as teeth for 3D measurement and for relaying feedback about a quality of the 3D measurement to a user. In this way unsuccessful registrations surface areas of the teeth that have not been acquired yet may be corrected by informing the user to repeat scans at corresponding locations in the intra-oral cavity.

Abstract: A dental dispenser that receives a cartridge and a blunt tip applicator for the safe and controlled extrusion and placement of dental materials such as non-injectable anesthetics.

Abstract: Described herein are a polymerizable antibacterial nanogel and hydrolytically stable antibacterial nanogel composition and methods of preparing such compositions, use of polymerizable antibacterial nanogels and hydrolytically stable antibacterial nanogels as additives to a dental product, such as a resin monomer, a cement, an adhesive and composite formulations. Methods and compositions for forming hydrolytically stable antibacterial monomers are also described.

Abstract: The invention relates to a method for sealing of a circumferentially closed canal. A closure element is secured to one free end of a light guide conducting a laser beam. The light guide with the closure element is introduced into the canal. The closure element is positioned in the region of the canal to be sealed and after positioning of the closure element energy is introduced, so that the closure element melts or softens and remains in this position in the canal and seals it tightly.

Abstract: A method for color customization of dental restorations is presented with the steps of providing tooth measurement data, wherein the tooth measurement data comprise at least one insertion area in which the dental restoration is to be inserted, providing restoration data, providing information about staining or glazing colors, generating a color characteristic from the tooth measurement data taking into account the restoration data, and calculating a multicolor target coloration from the color characteristic taking into account the information on staining or glazing colors, as well as output of the multicolor target coloration for color customization of the dental restoration.

Abstract: 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).