公开(公告)号：US12178684B2

公开(公告)日：2024-12-31

申请号：US17427334

申请日：2020-01-22

Applicant: DENTSPLY SIRONA Inc.

Inventor： Ronny Kucharczyk ,  Björn Voss

IPC: G06K9/62 ,  A61B5/00 ,  A61C9/00 ,  G06T7/11 ,  G06V10/10 ,  G06V10/75

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.

公开(公告)号：US12031867B2

公开(公告)日：2024-07-09

申请号：US17291004

申请日：2019-11-08

Applicant: DENTSPLY SIRONA INC.

Inventor： Ronny Kucharczyk ,  Frederike Franke ,  Björn Voss

IPC: G01J3/50 ,  A61C19/04 ,  G01B11/02 ,  G01J3/52 ,  G06T7/70 ,  G06T7/90 ,  H04N23/55 ,  H04N23/57

CPC classification number: G01J3/508 ,  A61C19/04 ,  G01B11/026 ,  G01J3/524 ,  G06T7/70 ,  G06T7/90 ,  H04N23/55 ,  H04N23/57 ,  G06T2207/30036

Abstract: The invention relates to a system and a method for determining the color of teeth or tooth surfaces, wherein the system comprises a 2D or 3D camera and an attachment on said camera, which sets a geometry of a captured image in such a way that, compared to capturing an image without the attachment, the distance, spatial angle and orientation of tooth surfaces relative to the camera are restricted. The attachment according to the invention can in particular be fitted to the camera in a simple manner.

公开(公告)号：US11864963B2

公开(公告)日：2024-01-09

申请号：US17298195

申请日：2019-11-25

Applicant: DENTSPLY SIRONA INC.

Inventor： Frederike Franke ,  Christoph Brandes ,  Michael Bäurer ,  Björn Voss

IPC: A61C13/08 ,  A61C13/00 ,  A61C13/083 ,  B28B11/12 ,  B28B11/24

CPC classification number: A61C13/082 ,  A61C13/0004 ,  A61C13/083 ,  B28B11/12 ,  B28B11/243

Abstract: The invention relates to a method and to a corresponding system for providing a dental prosthesis made from ceramic material having a colour matched to the patient comprising the following steps: (i) receiving a desired nominal colour for the dental prosthesis, determining a deviation between the nominal colour and actual colour of the sintered ceramic material by the control unit and defining a temperature time cycle having a cycle time suitable for compensation of the deviation, for sintering at a defined sintering temperature and creating a corresponding sintering program by the control unit; and (ii) adjusting the actual colour of the selected ceramic material to the nominal colour in the sintering furnace by the sintering program executed by the sintering furnace.

公开(公告)号：US20230338121A1

公开(公告)日：2023-10-26

申请号：US17724780

申请日：2022-04-20

Applicant: DENTSPLY SIRONA Inc.

Inventor： Jörg Witthaus ,  Björn Voss

IPC: A61C9/00 ,  A61C7/00 ,  A61C19/04

CPC classification number: A61C9/0053 ,  A61C7/002 ,  A61C19/04

Abstract: Capturing obscured areas in an oral cavity of a patient by providing a dental instrument with a camera to capture at least an area of operation of the dental instrument and comparing two-dimensional (2D) images from the camera with a three-dimensional (3D) model of the patient's jaw to compute a position of the camera or dental instrument in relation to the patient's jaw. Information about a deviation of one or more actual dental process parameters from one or more corresponding planned dental process parameters are displayed.

公开(公告)号：US20210389182A1

公开(公告)日：2021-12-16

申请号：US17291004

申请日：2019-11-08

Applicant: DENTSPLY SIRONA INC.

Inventor： Ronny Kucharczyk ,  Frederike Franke ,  Björn Voss

IPC: G01J3/50 ,  A61C19/04 ,  G06T7/70 ,  G06T7/90 ,  G01B11/02 ,  G01J3/52 ,  H04N5/225

Abstract: The invention relates to a system and a method for determining the color of teeth or tooth surfaces, wherein the system comprises a 2D or 3D camera and an attachment on said camera, which sets a geometry of a captured image in such a way that, compared to capturing an image without the attachment, the distance, spatial angle and orientation of tooth surfaces relative to the camera are restricted. The attachment according to the invention can in particular be fitted to the camera in a simple manner.