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公开(公告)号：US20210097680A1
公开(公告)日：2021-04-01
申请号：US16621846
申请日：2018-06-20
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Anders ADAMSON , Markus ERBACHER , Steffen HAUTH , Björn VOSS
Abstract: The invention relates to a method for producing a two-dimensional whole image of a recording region captured by means of a plurality of individual images, each having its own viewing direction and its own distance, wherein a spatial orientation of a main image plane of each individual image relative to a main image plane of the respective further individual image is determined on the basis of an overlap of the respectively captured subregions, and at least a plurality of the individual images are combined in accordance with the spatial orientations to form the whole image. The whole image area is the surface of a torus.
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公开(公告)号：US10952932B2
公开(公告)日：2021-03-23
申请号：US16322135
申请日：2017-08-09
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Michael Bäurer
IPC: C04B35/486 , A61K6/818 , A61C13/00 , A61C13/083 , C04B35/645
Abstract: The invention relates to a blank for producing a tooth replacement part using a CAD/CAM device, comprising a block of a sintered material. Said block of sintered material has already been presintered in a sintering furnace at an initial sintering temperature between 1000° C. and 1250° C.
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公开(公告)号：US10521935B2
公开(公告)日：2019-12-31
申请号：US15589979
申请日：2017-05-08
Applicant: Sirona Dental Systems GmbH
Inventor： Johannes Ulrici
Abstract: The invention relates to a method for creating a virtual dental image from a 3D volume (1) comprising volumetric image data. Firstly, a sub-volume (8, 12, 15, 18) of the 3D volume (1) is defined and then a virtual projection image (30, 41) is generated for said sub-volume (8, 12, 15, 18) from a specific X-ray imaging direction (11) by computation of the volumetric image data in said X-ray imaging direction (11).
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公开(公告)号：US10357212B2
公开(公告)日：2019-07-23
申请号：US14905750
申请日：2014-07-16
Applicant: Sirona Dental Systems GmbH
Inventor： Kai Lindenberg , Stefan Wundrak
Abstract: The invention relates to a method for capturing a three-dimensional x-ray image (1) of an object (2) by means of an x-ray system (3) comprising an x-ray source (4), an x-ray detector (5) and a shutter matrix (7), the shutter matrix (7) having a plurality of shutter elements (18), the x-ray absorption properties of which are controllable. In the first method step, at least one region (21) to be captured of the object (2) is defined, wherein settings are planned for the individual shutter elements (18) of the shutter matrix (7) for different rotary positions (14, 15, 16, 17), taking into account the defined area (21) to be captured. Then, a plurality of two-dimensional x-ray images is captured from the planned rotary positions (14, 15, 16, 17) during at least one partial rotation (9) using the planned settings of the shutter elements (18), wherein the overall three-dimensional x-ray image (1) of the area (21) to be captured is generated from the individual two-dimensional x-ray images.
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公开(公告)号：US20190125500A1
公开(公告)日：2019-05-02
申请号：US16306753
申请日：2017-06-02
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Thomas OSKAM , Vanik KAUFMANN-JINOIAN
Abstract: The invention relates to a method for producing an individualized dental impression tray and to one such impression tray, wherein a digital impression tray model of an individualized impression tray is created on the basis of a digital jaw model, the impression tray model has a carrier with at least one inner surface which at least partially corresponds to a negative form of the jaw model, at least one surface subregion on the inner surface is marked by hand or automatically detected, a retaining structure is arranged above and/or below the surface subregion, the impression tray model is stored with the retaining structure as a production template, and the impression tray is produced by machining according to the production template. The retaining structure has a first surface which extends substantially parallel to the surface subregion or substantially in line with the surface subregion and has at least one recess running through it, wherein a depression adjoins each recess of the first surface, the depression extends from the recess in the direction of the carrier and/or into the carrier, and each depression has at least one undercut.
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Patent Agency Ranking
公开(公告)号：US10080636B2
公开(公告)日：2018-09-25
申请号：US14399271
申请日：2013-05-07
Applicant: Sirona Dental Systems GmbH
Inventor： Frank Thiel , Sascha Schneider
CPC classification number: A61C19/04 , A61B6/14 , A61C9/0046 , A61C9/006 , A61C9/0073 , A61C9/008
Abstract: The invention relates to a method for measuring a dental situation comprising a plurality of implants and/or preparations for inserting dental restorations. Using a first measuring method, a first region of the dental situation is initially recorded while first measurement data are generated. The first region is selected to comprise at least two implants and/or preparations. Subsequently, object regions surrounding the implants and/or the preparations are established, and, while using a second measuring method, the established object regions are detected, and second measurement data are generated. The second measuring method is more precise than the first measuring method.
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公开(公告)号：US10076388B2
公开(公告)日：2018-09-18
申请号：US14189441
申请日：2014-02-25
Applicant: Sirona Dental Systems GmbH
Inventor： Günter Saliger
CPC classification number: A61C13/0004 , A61C5/70 , A61C9/004 , A61C13/0022 , A61C13/082
Abstract: The method for the production of a dental prosthesis part comprises the provision (11) of a dataset (2) for a dental prosthesis part (6) for use in a CAD/CAM technique, the provision (12) of reference data (3) for optical properties of different dentin materials and translucent enamel materials for the dental prosthesis part (6) and a relationship (4) between said optical properties, the desired optical properties and the dimensions of the dental prosthesis part (6), the definition (13) of a first setpoint (S1) for the optical properties of a dentin region, the definition (14) of a second setpoint (S2) for the optical properties of an enamel region, the definition (15) of a third setpoint (S3) for a thickness of the enamel region of the dental prosthesis part (6), the selection and provision (16) of a dental prosthesis mold block (5) having a dentin region made from a material.
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公开(公告)号：US20180214246A1
公开(公告)日：2018-08-02
申请号：US15532526
申请日：2015-12-17
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Metin ERTUGRUL
IPC: A61C1/18
CPC classification number: A61C1/186 , A61C1/185 , B25B23/141
Abstract: The invention relates to a dental instrument, comprising a gearing for driving a tool, wherein at least one torque limiting device is provided, which can be brought into contact with the gearing, as a result of which the maximum acting torque in the gearing can be limited.
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公开(公告)号：US20180193117A1
公开(公告)日：2018-07-12
申请号：US15743708
申请日：2016-07-20
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Thomas OSKAM
CPC classification number: A61C13/0004 , A61C13/0024 , A61C13/01
Abstract: The invention relates to a method for computer-aided planning of a repair or adjustment of a dental partial prosthesis with the following method steps: generation of a first digital 3D model of a jaw with the partial prosthesis positioned on the jaw as a prosthesis reference model (M1), generation of a second digital 3D model of the jaw, without the partial prosthesis, as a jaw model (M2), determination of a positional relationship of the prosthesis reference model (M1) to the jaw model (M2), generation of a digital prosthesis model (P) by subtracting the jaw model (M2) from the prosthesis reference model (M2) while taking the positional relationship into account, automatic identification and/or identification carried out by a user of holding and/or support elements (3) in the prosthesis model (P), calculation of an insertion axis (4) of the partial prosthesis on the basis of the prosthesis model (P), calculation of undercut depths, resulting from the insertion axis (4), of the holding and/or support elements (3) in the prosthesis model (P), display of the insertion axis (4) and the undercut depths in the presentation of the jaw model (M2).
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公开(公告)号：US09958207B2
公开(公告)日：2018-05-01
申请号：US14417453
申请日：2013-07-24
Applicant: Sirona Dental Systems GmbH
Inventor： Christian Schmidt , David Figge , Siegfried Gleditzsch , Peter Fornoff
Abstract: The invention relates to a sintering furnace for components consisting of sintering material, especially dental components and in particular components consisting of ceramic, and a method for sintering such components. The sintering furnace 1 comprises a heatable furnace chamber 2 for the component 9 to be sintered, the furnace chamber 2 having a wall section 6 to be opened for inserting the component 9 to be sintered into the furnace chamber 2. Drive means 10 are provided for mechanized opening and closing of the wall section 6, and a control 11 is provided for the drive means 10 that has an actuation element 12 for the drive means 10. Furthermore, a heating device 5 for the furnace chamber 2 is provided, and the control 11 causes the furnace chamber 2 to be heated. Actuating the control element 12 triggers the loading sequence of the control 11, and the drive means 10 are automatically actuated by the control 11 corresponding to the loading sequence. An additional subject is a method for operating the sintering furnace, as well as a computer program therefor.
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