公开(公告)号：US20200000562A1

公开(公告)日：2020-01-02

申请号：US16490712

申请日：2018-03-02

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Peter WEY

IPC: A61C13/00 ,  A61C9/00 ,  G06N3/02 ,  A61C13/34

Abstract: The invention relates to a method for constructing a restoration (1), in which a dental situation (3) is measured by means of a dental camera (2) and a 3D model (4) of the dental situation (3) is generated. In this case, a computer-assisted detection algorithm is applied to the 3D model (4) of the dental situation (3), wherein a type of restoration (17) and/or at least a tooth number (18) and/or a position of the restoration (1) to be inserted are automatically determined.

公开(公告)号：US20190247165A1

公开(公告)日：2019-08-15

申请号：US16344829

申请日：2017-10-30

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Daniel MÜLLNER ,  Clemens GROSS

IPC: A61C13/00 ,  G06F17/50 ,  G06T19/20 ,  A61C9/00

CPC classification number: A61C13/0004 ,  A61C1/084 ,  A61C8/0068 ,  A61C9/0006 ,  G06F17/50 ,  G06T19/20 ,  G06T2210/41 ,  G06T2219/2004 ,  G06T2219/2021

Abstract: The invention related to a method for planning a dental structure, in which a 3D model of the structure, with at least one radially symmetrical aperture, is already provided.On the basis of the 3D model of the structure that is already provided, an axis of symmetry of the at least one radially symmetrical aperture of the structure is determined in relation to said 3D model.

公开(公告)号：US20190101332A1

公开(公告)日：2019-04-04

申请号：US16078074

申请日：2017-02-24

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Christian SCHMIDT ,  Michael BAURER

IPC: F27B17/02 ,  A61C13/08 ,  A61C13/20 ,  F27D19/00 ,  F27D21/00 ,  F27D5/00

Abstract: The invention relates to an induction furnace for carrying out a heat treatment of a dental replacement part, comprising an induction coil, a radiant heater, an insulation layer and a furnace chamber. The induction furnace has a cooling system with a liquid cooling system in order to control an internal temperature of the furnace chamber.

公开(公告)号：US10206558B2

公开(公告)日：2019-02-19

申请号：US15575871

申请日：2016-05-20

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Joachim Pfeiffer ,  Frank Thiel

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

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：US10101088B2

公开(公告)日：2018-10-16

申请号：US14417453

申请日：2013-07-24

Applicant: Sirona Dental Systems GmbH

Inventor： Christian Schmidt ,  David Figge ,  Siegfried Gleditzsch ,  Peter Fornoff

IPC: F27B17/02 ,  A61C13/20 ,  F27D19/00 ,  F27D21/00

CPC classification number: F27B17/025 ,  A61C13/20 ,  F27D19/00 ,  F27D21/00 ,  F27D2019/0003 ,  F27D2019/0028 ,  F27D2019/0081

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.

公开(公告)号：US10045840B2

公开(公告)日：2018-08-14

申请号：US15215973

申请日：2016-07-21

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Klaus Niewiadomski

IPC: A61C13/00 ,  G06K19/06

Abstract: The invention relates to a blank for the production of a dental shaped body, wherein the blank has a corpus (2) of tooth restoration material, from which the shaped part to be fabricated is carved by means of a tool (4) by removal of material. The blank has coding means (1) formed on part of the surface (6) of the blank corpus (2), which coding means (1) has at least one structure (8, 9) for identification of the blank. The coding means (1) consists of a plurality of panels (5.1) at the level of the surface (6) of the corpus (2) and a plurality of panels (5.2, 5.3) incorporating a flat structure (8, 9) at a level (h1, h2) which is distinguishable from at least the level of the surface (6) of the corpus (2).The invention further relates to a method for identifying a blank with the aid of coding means (1).

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：US09910255B2

公开(公告)日：2018-03-06

申请号：US15021588

申请日：2014-09-11

Applicant: Sirona Dental Systems GmbH

Inventor： Markus Berner

IPC: G02B21/00 ,  G02B27/10 ,  A61C9/00 ,  G02F1/01 ,  G02B21/36 ,  G02F1/03 ,  A61B5/00 ,  A61B5/107 ,  G02B5/30

CPC classification number: G02B21/0032 ,  A61B5/0066 ,  A61B5/0068 ,  A61B5/1077 ,  A61C9/006 ,  G02B5/3083 ,  G02B21/0028 ,  G02B21/004 ,  G02B21/008 ,  G02B21/0092 ,  G02B21/365 ,  G02B21/367 ,  G02B27/10 ,  G02F1/0136 ,  G02F1/03 ,  G02F1/0311

Abstract: The invention relates to an optical system for generating a pattern which changes over time for a confocal microscope. The system includes a light source arrangement, a beam splitter, and a lens arrangement. The beam splitter allows for passage of a light beam proceeding from the light source arrangement in the direction of an object and for deflecting the reflected light beam, reflected by the object in a focal plane, in the direction of a detector. The detector includes a detector pattern for detecting an image of the object. The lens arrangement is between the beam splitter and the object and includes: a light source that generates the light beam, and a device configured to switch a direction of polarization of the light beam to generate a changing projector pattern.

公开(公告)号：US20170348072A1

公开(公告)日：2017-12-07

申请号：US15537198

申请日：2015-12-18

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Paul SCHNITZSPAN ,  Volker WEDLER

IPC: A61C8/00 ,  A61C9/00 ,  A61C13/00

Abstract: A method is proposed for ascertaining the spatial positions and orientations of at least two implants (120) anchored in a jaw of a patient, said method having the following steps: 1. An adhesive bond aid (100) is produced that bridges the implants and has negative molds (140) of adhesive caps (110), wherein the negative molds fit on the adhesive caps if these are affixed to the implants, and wherein the negative molds allow a clearance relative to the adhesive caps. 2. The adhesive caps are affixed to the at least two implants in the jaw of the patient. 3. The adhesive bond aid is positioned over the adhesive caps. 4. The clearance between the adhesive caps and the negative molds is filled with adhesive. 5. The adhesive is cured. 6. The adhesive caps are released from the implants. 7. The obtained adhesion key is removed from the patient. Using this adhesion key, in the production of restorations that rest upon multiple implants, it can be ensured that the implant arrangement is correctly transferred into the mouth of the patient.

公开(公告)号：US09833298B2

公开(公告)日：2017-12-05

申请号：US14415547

申请日：2013-07-17

Applicant: Sirona Dental Systems GmbH

Inventor： Matthias Rein ,  Siegfried Goisser ,  Metin Ertugrul ,  Ralf Sutter

IPC: A61C1/05

CPC classification number: A61C1/05

Abstract: A dental apparatus that includes a turbine, a rotor, and a disruptive contour. The turbine drives a tool by compressed air. The rotor is arranged in a turbine compartment and rotates about its longitudinal axis. The rotor includes a plurality of blades that extend up to a front side of the rotor. The disruptive contour is at least one protrusion on a wall opposite the front side of the rotor which extends over a height in a direction of the longitudinal axis of the rotor.