公开(公告)号：WO2023285420A1

公开(公告)日：2023-01-19

申请号：PCT/EP2022/069382

申请日：2022-07-12

Applicant: DENTSPLY SIRONA INC. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： STAHL, Christian

IPC: G06F30/27 ,  A61C13/00 ,  A61C1/08 ,  A61C7/08 ,  A61C7/00 ,  B33Y10/00 ,  B33Y80/00 ,  G06N20/00 ,  G16H50/20 ,  G16H50/50 ,  G06F113/10 ,  G06F111/06

Abstract: The present invention relates to a computer-implemented method for the automatic generation of component-describing data for use in a preparation of additive/subtractive manufacturing jobs for dental components such as splints, denture bases, models, restorations such as bridges and crowns, wherein for each at least one component type a specialized pre-trained neural network is used for setting surface and/or volume attributes of the dental component, wherein the surface and volume attributes describe the accuracy and quality requirements of construction elements of the dental components with regard to the intended use, wherein the accuracy and quality requirements comprise at least one of the following: geometric dimensional accuracy, mechanical strength, surface texture color, and the avoidance of the attachment of support elements, wherein the neural network has been pre-trained by means of dental components for which the surface and/or volume attribution has already been carried out.

公开(公告)号：WO2023280612A1

公开(公告)日：2023-01-12

申请号：PCT/EP2022/067571

申请日：2022-06-27

Applicant: DENTSPLY SIRONA INC. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： SCHULZE-GANZLIN, Ulrich ,  LINDENBERG, Kai

IPC: A61B6/14 ,  A61B6/00

Abstract: The present invention relates to an intraoral X-ray sensor (1) for use with an intraoral X- ray system (3) having an automatic exposure control (AEC) functionality, characterized in that the intraoral X-ray sensor (1) includes an exposure analysis unit (1.2), an imaging X- ray detector (1.3), and a communication interface (1.1), wherein a scout shot or scout video stream received from the imaging X-ray detector (1.3) is analyzed by the exposure analysis unit (1.2) in the intraoral X-ray sensor (1) in order to record information on the exposure level of the scout image or video stream and to forward this information by means of the communication interface (1.1) to a decision unit (2.2) of the intraoral X-ray system (3), which is arranged externally to the intraoral X-ray sensor (1), and adapted for evaluation and decision of further exposures.

公开(公告)号：WO2022223275A1

公开(公告)日：2022-10-27

申请号：PCT/EP2022/058892

申请日：2022-04-04

Applicant: DENTSPLY SIRONA INC. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： SCHNABEL, Ruwen

IPC: A61C9/00 ,  G16H30/40 ,  G16H50/50 ,  A61C7/00 ,  G06T7/00 ,  A61B1/24 ,  A61B5/00 ,  A61C13/00 ,  G06F3/01 ,  A61B90/00

Abstract: The present teachings relate to a method for assisting an intraoral scan comprising: providing an intraoral image of a patient, providing an extraoral image; wherein the extraoral image is representative of the position of an extraoral scanner part, generating, using the intraoral image and the extraoral image, a mapping function correlating the position of the extraoral scanner part with the position of the intraoral scanner part; computing, using the mapping function, a desired extraoral position of the extraoral scanner part; wherein the desired extraoral position corresponds to a preferable intraoral position of the intraoral scanner part. The present teachings also relate to a system, a device, a use, data, and a storage medium.

公开(公告)号：WO2021083693A1

公开(公告)日：2021-05-06

申请号：PCT/EP2020/079200

申请日：2020-10-16

Applicant: DENTSPLY SIRONA INC. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： SCHNEIDER, Hans-Christian ,  STEGER, Sebastian ,  WEISS, Daniel

IPC: A61C13/00 ,  G05B19/4065 ,  B23Q17/09

Abstract: The present invention relates to a dental machining system for manufacturing a dental restoration comprising: a dental tool machine (1) which comprises: a dental blank holder for holding at least one dental blank (2) relatively movably with respect to one or more dental tools (3); one or more driving units (4) each for movably holding at least one dental tool (3) for machining the dental blank (2), a control unit for controlling the dental blank holder and the driving units (4) based at least on a temporal trajectory of the dental tool (3) relative to the dental blank (2) and a spatial amount of material removal from the dental blank (2) along the temporal trajectory; characterized in that the control unit is further adapted to execute a primary trained artificial intelligence algorithm adapted to predict dynamical quantities based on the temporal trajectory and, the spatial amount of material removal, wherein the dynamical quantities correspond to one or more physically measurable quantities which relate to the respective dental tool (3) along the temporal trajectory; a secondary trained artificial intelligence algorithm adapted to predict the wear condition of the dental tool (3) based on the predicted dynamical quantities.

公开(公告)号：WO2021032425A1

公开(公告)日：2021-02-25

申请号：PCT/EP2020/071377

申请日：2020-07-29

Applicant: DENTSPLY SIRONA INC. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： TANAKA, Simon ,  STAHL, Christian ,  WEISS, Daniel

IPC: B29C64/386 ,  B29C64/40 ,  B33Y50/00

Abstract: The present invention relates to a method of imposing quality requirements on a 3D model (1) including support structures (2) to be built by an additive manufacturing apparatus comprising: a platform (3) for holding the 3D object corresponding to the 3D model (1), the method comprising: a step of defining the surface geometry and the orientation of the 3D model (1) with respect to the platform (3), wherein the surface geometry includes surface segments; characterized by further comprising: a step of attributing a degree of quality (L;H) to the surface segments respectively against post-processing for the subsequent removal of the support structures (2); a step of calculating, based on the defined orientation, the surface geometry and the degree of quality (L;H) attributed, the positions on the surface segments where the support structure (2) may be added; and a step of adding the support structure (2) to the 3D model (1) based on the calculated positions and the degree of quality (L;H) attributed.

公开(公告)号：WO2020182878A1

公开(公告)日：2020-09-17

申请号：PCT/EP2020/056495

申请日：2020-03-11

Applicant: DENTSPLY SIRONA INC. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： MICHALICA, Thomas ,  SCHMIDT, Christian ,  BASLER, Franz

IPC: B33Y30/00 ,  G03F7/20 ,  B33Y50/02 ,  B29C64/129 ,  B29C64/232 ,  B29C64/241 ,  B29C64/393 ,  B29C64/236

Abstract: A stereolithography apparatus (1) for generating a three-dimensional object (2), comprising: an optical unit (4) for projecting an image towards the photocurable substance (3) for hardening the photocurable substance (3) deposited in the focus layer (5); a control unit (6), characterized by further comprising: a detection unit (7) which comprises: a detection means (8) movably arranged in a detection region (9) for detecting during the generation process or in a generation-pause the image projected by the optical unit (4) and for outputting a detection signal; and a first driving means (10) for moving the detection means (8) into or out of the detection region (9), wherein the optical unit (4) comprises: a second driving means (11) linked to the optical unit (4) for moving the focus layer (5) into or out of the detection region (9), wherein the control unit (6) adjusts the optical unit (4) and/or modifies the image to be projected based on the signal indicative of the detected image.

公开(公告)号：WO2020182669A1

公开(公告)日：2020-09-17

申请号：PCT/EP2020/056049

申请日：2020-03-06

Applicant: DENTSPLY SIRONA INC. ,  SIRONA DENTAL SYSTEMS GMBH

Inventor： SUTTER, Ralf ,  EBERHARD, Christian ,  SEIFERT, Leo

IPC: A61C17/02

Abstract: The present invention provides a treatment apparatus (1) for treating peri-implantitis. Treatment apparatus (1) is characterized by comprising: An application tip (2) that is adapted for insertion into the sub-gingival region between the screw fixture of a dental implant and the surrounding gingiva and/or bone, wherein the length of the application tip (2) is at least equal to the depth of the peri-implant pocket to be treated, and wherein the application tip (2) comprises one or more nozzles (3) for jetting pressurized sterile fluid (4) for removing the bacterial biofilms from the outer surface of the screw fixture of the dental implant in vivo; a handpiece (5) for holding and guiding the application tip (2); and a supply unit (6) for supplying pressurized sterile fluid (4) to the application tip (2).

公开(公告)号：WO2020136033A3

公开(公告)日：2020-07-02

申请号：PCT/EP2019/085389

申请日：2019-12-16

Applicant: SIRONA DENTAL SYSTEMS GMBH ,  DENTSPLY SIRONA INC.

Inventor： SCHULZE-GANZLIN, Ulrich ,  LINDENBERG, Kai

IPC: A61B6/14 ,  A61B6/00

Abstract: The invention relates to a dental x-ray imaging system for producing intraoral x-ray images, in particular of dental patient tissue, with the aid of an intraoral x-ray sensor, which can be placed in the oral cavity in the beam path of an x-ray emitter positioned outside the oral cavity, wherein the x-ray imaging system is configured to record two or more temporally sequential individual x-ray images and to create an overall x-ray image from said individual images in such a way that the results of the exposures of the x-ray images are combined and a motion occurring between and/or during the sequential individual x-ray images is compensated.

公开(公告)号：WO2020127162A1

公开(公告)日：2020-06-25

申请号：PCT/EP2019/085502

申请日：2019-12-17

Applicant: SIRONA DENTAL SYSTEMS GMBH ,  DENTSPLY SIRONA INC.

Inventor： WILLERS, Ulf ,  SCHNEIDER, Sascha

IPC: A61C7/00 ,  A61C5/20 ,  G16H50/50 ,  G16H20/40 ,  A61C13/00

Abstract: A method for the digital planning of a restorative care of at least one tooth in the dentition of a patient includes orthodontic tooth movement in the planning of restorative care.

公开(公告)号：WO2020120413A1

公开(公告)日：2020-06-18

申请号：PCT/EP2019/084273

申请日：2019-12-09

Applicant: SIRONA DENTAL SYSTEMS GMBH ,  DENTSPLY SIRONA INC.

Inventor： SCHULZE-GANZLIN, Ulrich

IPC: A61B6/14 ,  A61B6/04 ,  A61B6/00 ,  A61B5/00 ,  A61B6/08 ,  A61B1/24 ,  A61B6/06

Abstract: The present invention relates to a method for preparing an X-ray image, which can be carried out by an X-ray machine, of at least one surface and/or volume area of at least one part of at least one head of at least one patient. The invention also relates to a corresponding device for data processing, a corresponding computer program product, a corresponding medium and a corresponding X-ray machine. The invention also relates to a method for taking an X-ray image which can be carried out by an X-ray machine of at least one surface and/or volume area of at least one part of at least one head of at least one patient.