公开(公告)号：US20190236785A1

公开(公告)日：2019-08-01

申请号：US16379907

申请日：2019-04-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alberto Alvarez ,  Eric S. Hansen ,  Steven C. Demlow ,  Richard E. Raby

IPC: G06T7/00 ,  G06T7/73 ,  G06T7/33 ,  A61C7/00 ,  A61C11/00 ,  A61C9/00 ,  G06T19/20

Abstract: A method for determining virtual articulation from dental scans. The method includes receiving digital 3D models of a person's maxillary and mandibular arches, and digital 3D models of a plurality of different bite poses of the arches. The digital 3D models of the maxillary and mandibular arches are registered with the bite poses to generate transforms defining spatial relationships between the arches for the bite poses. Based upon the digital 3D models and transforms, the method computes a pure rotation axis representation for each bite pose of the mandibular arch with respect to the maxillary arch. The virtual articulation can be used in making restorations or for diagnostic purposes.

公开(公告)号：US20160374779A1

公开(公告)日：2016-12-29

申请号：US15261281

申请日：2016-09-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Sung Kim ,  Richard E. Raby

IPC: A61C7/14 ,  B29C67/00 ,  A61C7/00

CPC classification number: A61C7/146 ,  A61C7/002 ,  B29C64/00 ,  B29C64/188 ,  B29C64/386 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/00 ,  B33Y50/02 ,  B33Y80/00 ,  G05B19/4099 ,  G05B2219/35134 ,  G05B2219/49007

Abstract: The present invention is directed to computer-implemented methods of making a transfer tray using rapid prototyping techniques, where the gingival edge of the tray is defined to intersect with at least one receptacle for receiving an orthodontic appliance. This tray configuration helps to minimize the travel distance of the tray when placing the tray over a patient's teeth, while also preserving a high degree of mechanical retention for retaining the appliance until such time that the appliance is bonded to the tooth. Other aspects of the tray and associated methods of bonding are directed to a frangible web that extends over the gingival portion of the receptacle and fractures to facilitate tray removal after bonding.

公开(公告)号：US20240033044A1

公开(公告)日：2024-02-01

申请号：US18039834

申请日：2021-12-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ralf M. Paehl ,  David K. Cinader, JR. ,  Dietmar Blees ,  Ralf Schlimper ,  Ming-Lai Lai ,  Richard E. Raby

IPC: A61C7/08 ,  A61C7/16 ,  A61C7/20

CPC classification number: A61C7/08 ,  A61C7/16 ,  A61C7/20

Abstract: A method includes wire driven phase in which a plurality of attachments are bonded to teeth, the attachments including a wire-retaining region and an engagement region. The engagement region has a shoulder configured to releasably engage a corresponding indentation in an aligner tray. An archwire is inserted in to the wire-retaining regions to move a first malaccluded tooth from a first position to a second position. An aligner phase follows the wire driven phase, in which the archwire is removed, and an aligner tray is applied over the teeth of the patient. The aligner tray includes cavities shaped to receive and resiliently position the first maloccluded tooth from the second position to a third position, and further includes indentations configured to releasably engage at least a portion of the engagement regions on the attachments.

公开(公告)号：US20230311410A1

公开(公告)日：2023-10-05

申请号：US18024629

申请日：2021-09-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Malte Korten ,  Andreas G. Herrmann ,  Bastian P. Kirchner ,  Gioacchino Raia ,  Daniel D. Oberpertinger ,  Christian A. Richter ,  Anja Friedrich ,  Richard E. Raby ,  Dietmar Blees ,  Ralf M. Paehl ,  Thomas K. Müller

IPC: B29C64/176 ,  B33Y30/00 ,  B29C64/124 ,  B29C64/35 ,  B33Y10/00 ,  B29C64/245 ,  B33Y40/20

CPC classification number: B29C64/176 ,  B29C64/124 ,  B29C64/245 ,  B29C64/35 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20

Abstract: The invention relates to a 3D printing system comprising a 3D printing device for manufacturing at least two workpieces. The invention also relates to a method for manufacturing at least two workpieces by means of the 3D printing system. Furthermore, the invention relates to an adapter set for attaching workpiece holders to a 3D printing device.

公开(公告)号：US11517401B2

公开(公告)日：2022-12-06

申请号：US16753554

申请日：2018-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Richard E. Raby ,  Chaodi Li ,  Michael K. Domroese

IPC: A61C7/08 ,  B33Y50/00 ,  B33Y80/00 ,  B29C64/386 ,  A61C7/00 ,  B29L31/00

Abstract: A removable dental appliance may include an appliance body at least partially surrounding two or more teeth of a patient. The appliance body may include a first shell shaped to receive a first tooth; a second shell shaped to receive a second tooth; and at least one spring bellows that includes an arcuate displacement extending over and away from at least a portion of an interproximal region between the first tooth and the second tooth to join the first shell and the second shell. The spring bellows is configured to apply a force between the first shell and the second shell to cause movement of at least one of the first tooth and the second tooth toward a desired position when the removable dental appliance is worn by the patient.

公开(公告)号：US20220361996A1

公开(公告)日：2022-11-17

申请号：US17762968

申请日：2020-10-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Richard E. Raby ,  Eric S. Hansen ,  Joseph C. Fallo ,  Michael K. Domroese

IPC: A61C19/04 ,  A61C13/34 ,  G01L1/22

Abstract: Systems and techniques are described for determining at least one of a translational force or a rotational force applied by a dental appliance to a tooth or teeth of a patient. A system includes model teeth configured to represent a portion of a dental arch and receive a dental appliance, a post extending from a first end coupled to a respective tooth to a second end coupled to a base, at least one strain gauge integrally formed on a surface of the post between the first end and the second end, and processor communicatively coupled to the at least one strain gauge and configured to determine at least one of a translational force or a rotational force applied by the dental appliance to the respective tooth.

公开(公告)号：US20210137640A1

公开(公告)日：2021-05-13

申请号：US16954313

申请日：2019-01-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Richard E. Raby

IPC: A61C7/00 ,  A61C9/00 ,  A61C7/28 ,  A61C7/30

Abstract: A method for determining orthodontic brackets in order to use standard brackets or a combination of standard and custom brackets. The method determines which teeth in a digital 3D model of teeth have surfaces that will virtually fit to a base of a standard bracket within a tolerance. For those teeth that will virtually fit to one of the standard brackets, each of the teeth are associated with the corresponding standard bracket for later placement of the brackets on the surfaces of the patient's teeth. The method also identifies the teeth in the digital 3D model of teeth that will not virtually fit to a standard bracket, and brackets with custom bases can be designed and made for those teeth.

公开(公告)号：US20200375698A1

公开(公告)日：2020-12-03

申请号：US16753514

申请日：2018-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Ralf M. Paehl ,  David K. Cinader, Jr. ,  James D. Hansen ,  Richard E. Raby ,  Michael K. Domroese

IPC: A61C7/08 ,  A61C9/00

Abstract: A removable dental appliance may include an appliance body configured to at least partially surround a plurality of teeth. The appliance body may include a unitary material defining a shell shaped to receive at least one tooth of the patient; a spring member integrally formed with the shell; and a positioning member integrally formed with the shell. The spring member may be configured to receive an attachment affixed to the at least one tooth. The spring member may be configured to apply a spring force to the attachment to cause movement of the at least one tooth toward a desired position when the removable dental appliance is worn by the patient. The positioning member may be configured to facilitate engagement of the spring member with the attachment in response to a positioning force being applied to the positioning member.

公开(公告)号：US20200289239A1

公开(公告)日：2020-09-17

申请号：US16753554

申请日：2018-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Richard E. Raby ,  Chaodi Li ,  Michael K. Domroese

IPC: A61C7/08 ,  A61C7/00 ,  B33Y80/00 ,  B33Y50/00 ,  B29C64/386

Abstract: A removable dental appliance may include an appliance body at least partially surrounding two or more teeth of a patient. The appliance body may include a first shell shaped to receive a first tooth; a second shell shaped to receive a second tooth; and at least one spring bellows that includes an arcuate displacement extending over and away from at least a portion of an interproximal region between the first tooth and the second tooth to join the first shell and the second shell. The spring bellows is configured to apply a force between the first shell and the second shell to cause movement of at least one of the first tooth and the second tooth toward a desired position when the removable dental appliance is worn by the patient.

公开(公告)号：US10335251B2

公开(公告)日：2019-07-02

申请号：US15416286

申请日：2017-01-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Peter See ,  Richard E. Raby ,  Nicholas A. Stark

IPC: A61C7/00 ,  A61C11/00 ,  G06F17/50 ,  G16B5/00 ,  G06T19/00 ,  G16H50/50

Abstract: Methods for recognizing a virtual tooth surface, defining a virtual tooth coordinate system, and simulating a collision between virtual teeth are provided. Methods include receiving input data specifying a point on the rendered surface model associated with a tooth, deriving a perimeter on the surface model of the tooth based on the input data, and analyzing the surface model along a plurality of paths outwardly extending from points on the perimeter along the three-dimensional surface to produce gingival margin data. Methods also include receiving point input data that defines a point on the virtual tooth, receiving axis input data that defines first and second axes associated with the virtual tooth, computing a substantially normal vector for a portion of the tooth surface surrounding the point, and computing a coordinate system based on the axis input and the computed vector. Methods also include receiving permissible movement input data directed to permissible movement of a first virtual tooth, simulating, in three dimensional space, bringing the first virtual tooth into contact with a second virtual tooth while constraining movement of the first virtual tooth based on the permissible movement input data, and displaying data resulting from the simulation.