公开(公告)号：US20180078128A1

公开(公告)日：2018-03-22

申请号：US15564436

申请日：2016-04-11

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Anders ADAMSON ,  Frank THIEL ,  Ulf WILLERS

IPC: A61B1/24 ,  G01B11/02 ,  G01B9/02

CPC classification number: A61B1/24 ,  A61B5/0088 ,  A61C9/006 ,  A61C9/0066 ,  G01B9/0203 ,  G01B11/022 ,  G01B11/24 ,  G01B2210/52

Abstract: The invention relates to a measurement system for optically measuring an object, comprising a dental camera and an optical attachment. In this case the optical attachment comprises at least one lens, which is shaped and arranged in such a way that the optical attachment has a negative focal length so that a measurement field or a measurement volume of the dental camera is enlarged by the optical attachment.

公开(公告)号：US20210256696A1

公开(公告)日：2021-08-19

申请号：US17251364

申请日：2019-06-17

Applicant: SIRONA DENTAL SYSTEMS GMBH ,  DENTSPLY SIRONA INC.

Inventor： Sascha SCHNEIDER ,  Frank THIEL ,  Axel SCHWOTZER

IPC: G06T7/00 ,  G06T15/08 ,  G06T15/04 ,  A61B5/00 ,  A61C9/00

Abstract: A method for designing a drilling template, wherein a dental situation is measured by means of a 3D surface measuring device and a 3D surface model of the dental situation is produced and/or measured by means of an X-ray device or an MRI device, wherein the dental situation is measured and a volume model of the dental situation is produced, the method comprising the steps of: applying an artificial neural network for machine learning (convolutional neural network; CNN) to the 3D surface model of the dental situation and/or the volume model of the dental situation and/or to an initial 3D model of the drilling template: and automatically producing a ready made 3D model of the drilling template.

公开(公告)号：US20180125338A1

公开(公告)日：2018-05-10

申请号：US15575871

申请日：2016-05-20

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Joachim PFEIFFER ,  Frank THIEL

IPC: A61B1/00 ,  G01B11/25 ,  A61C9/00 ,  A61B1/247

CPC classification number: A61B1/00172 ,  A61B1/00188 ,  A61B1/247 ,  A61C9/006 ,  A61C9/0066 ,  G01B11/25 ,  G01B11/2513 ,  G01B11/2527

Abstract: The invention relates to a method and to a camera for the three-dimensional measurement of a dental object, comprising at least one light source, which emits an illumination beam, at least one projection means, which produces a projection pattern, focusing optics, which display the projection pattern in a plane of sharp focus at a defined focal distance relative to the dental camera. The projection pattern projected onto the object is reflected by the object as an observation beam and is acquired by means of a sensor. In the measurement of the object, the focusing optics are controlled in such a way that the focal distance of the plane of sharp focus relative to the camera is varied incrementally between a plurality of defined scan positions.

公开(公告)号：US20180125337A1

公开(公告)日：2018-05-10

申请号：US15575858

申请日：2016-05-20

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Frank THIEL ,  Joachim PFEIFFER

IPC: A61B1/00 ,  A61B1/247 ,  A61B1/04

Abstract: The invention relates to a method and a camera for the three-dimensional measurement of a dental object, comprising at least one light source that emits an illumination beam, at least one projection mask that produces a projection pattern, focusing optics that display the projection pattern in a plane of sharp focus at a defined focal distance relative to the dental camera. The projection pattern projected onto the object is reflected by the object as an observation beam and is acquired by means of a sensor. During the measurement of the object, the focusing optics are controlled in such a way that the focal distance of the plane of sharp focus relative to the camera is adjusted incrementally between a number of defined scan positions.

公开(公告)号：US20190282343A1

公开(公告)日：2019-09-19

申请号：US16317667

申请日：2017-07-21

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Joachim PFEIFFER ,  Frank THIEL

IPC: A61C9/00 ,  A61C19/04

Abstract: The invention relates to a measuring system for measuring an implant-implant situation for planning an implant-supported tooth replacement part supported on at least two implants, comprising a scanning template and the at least two set implants. The scanning template has cut-outs for the individual implants, wherein first markings are arranged on surface regions around the cut-outs.