公开(公告)号：US20240008955A1

公开(公告)日：2024-01-11

申请号：US18253699

申请日：2021-12-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jonathan D. Gandrud ,  Alexandra R. Cunliffe ,  James D. Hansen ,  Cameron M. Fabbri ,  Wenbo Dong ,  En-Tzu Yang ,  Jianbing Huang ,  Himanshu Nayar ,  Guruprasad Somasundaram ,  Jineng Ren ,  Joseph C. Dingeldein ,  Seyed Amir Hossein Hosseini ,  Steven C. Demlow ,  Benjamin D. Zimmer

IPC: A61C7/00 ,  A61C13/00

CPC classification number: A61C7/002 ,  A61C13/0004 ,  A61C2007/004

Abstract: Machine learning, or geometric deep learning, applied to various dental processes and 5 solutions. In particular, generative adversarial networks apply machine learning to smile design—finished smile, appliance rendering, scan cleanup, restoration appliance design, crown and bridges design, and virtual debonding. Vertex and edge classification apply machine learning to gum versus teeth detection, teeth type segmentation, and brackets and other orthodontic hardware. Regression applies machine learning to coordinate systems, diagnostics, case complexity, and 0 prediction of treatment duration. Automatic encoders and clustering apply machine learning to grouping of doctors, or technicians, and preferences.

公开(公告)号：US20230149125A1

公开(公告)日：2023-05-18

申请号：US18092562

申请日：2023-01-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joseph C. Dingeldein ,  James D. Hansen ,  Katelyn M. Languell ,  Christopher M. Brown

IPC: A61C5/80 ,  A61C13/08 ,  A61C5/20

CPC classification number: A61C5/80 ,  A61C13/081 ,  A61C5/20

Abstract: A tool for forming a dental restoration includes a mold body configured to provide a customized fit with at least one tooth of a patient. In some examples, the mold body defines an aperture configured to align with a portion of a surface of a tooth. The aperture is sufficiently large to allow placement and flow of restorative material over the desired portion of the surface of the tooth to be restored. The mold body is configured to combine with the at least one tooth of the patient to define a mold cavity encompassing at least a portion of desired tooth structure of the tooth to be restored.

公开(公告)号：US20220350127A1

公开(公告)日：2022-11-03

申请号：US17763763

申请日：2020-12-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Alexander J. Huffman ,  Brian J. Gates ,  Jeremy K. Larsen ,  David A. Ender ,  Gareth A. Hughes ,  James D. Hansen

IPC: G02B21/33 ,  G02B21/02

Abstract: The present disclosure provides a multiphoton imaging method. The method includes a) immersing a semi-submersible microscope objective in a liquid medium that is at least one of scattering or absorbing; b) directing laser light through the semi-submersible microscope objective and into the liquid medium in an image-wise manner under conditions such that multiphoton absorption by the multiphoton absorber occurs, and at least partial polymerization of the polymerizable compound occurs resulting in an article; and c) removing uncured polymerizable compound to clean the article. The liquid medium includes a polymerizable compound, a secondary component, and a multiphoton absorber. An article is also provided. The article includes a material defining one or more tortuous or arcuate channels, one or more internal architectural voids, one or more undercuts, one or more perforations, or combinations thereof, at least one of which exhibits a surface roughness of 1.0 micrometer Ra or less.

公开(公告)号：US20220023007A1

公开(公告)日：2022-01-27

申请号：US17297186

申请日：2020-01-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Saswata Chakraborty ,  Benjamin C. Mac Murray ,  James D. Hansen ,  Karl J.L. Geisler ,  Thomas P. Klun ,  Daniel J. Skamser ,  John M. Riedesel ,  Steven H. Kong ,  Anja Friedrich

IPC: A61C7/08 ,  B29C64/124 ,  B29C64/188 ,  B33Y10/00 ,  B33Y40/00

Abstract: The present disclosure provides a method of making an orthodontic article. The method includes (a) providing a photopolymerizable composition; (b) selectively curing the photopolymerizable composition using actinic radiation to form an article in the shape of an orthodontic article including a number of layers of at least one photopolymerized polymer; and (c) moving the article and thereby generating a mass inertial force in the uncured photopolymerizable composition. The article has a first surface, and no more than 75% of the first surface has a slope magnitude greater than 2.5 degrees. Orthodontic articles are also provided, including an orthodontic article that is prepared according to the method. Orthodontic articles having low extractable component content are further provided. The mass inertial force tends to form a coating layer of uncured photopolymerizable composition on the article, and curing the coating layer can form a surface having low slope magnitude. The low slope magnitude may be correlated to a low haze of the surface of the article.

公开(公告)号：US20210386522A1

公开(公告)日：2021-12-16

申请号：US16754211

申请日：2018-11-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Saswata Chakraborty ,  Benjamin C. Mac Murray ,  Eric W. Nelson ,  Thomas P. Klun ,  Wayne S. Mahoney ,  Chad M. Amb ,  George W. Griesgraber ,  Dana R. Reed ,  Ahmed S. Abuelyaman ,  Robert S. Clough ,  James D. Hansen ,  Daniel J. Skamser ,  Ian Dailey ,  John M. Riedesel

IPC: A61C7/08 ,  C08F220/34 ,  C08F2/50 ,  C08F220/18

Abstract: An orthodontic article is described comprising a cured composition comprising the reaction product of free-radically polymerizable resin comprising at least one monomer, oligomer and/or polymer, comprising at least two (meth)acryl moieties; a monofunctional reactive diluent; and a polymer or macromolecule comprising a free-radical photoinitiator group. The polymer or macromolecule has a molecular weight of at least 500 g/mole. In one embodiment, the cured composition comprises a first and second photoinitiator wherein at least one is a polymer or macromolecule. Also described are photopolymerizable compositions and methods.

公开(公告)号：US11185392B2

公开(公告)日：2021-11-30

申请号：US16061362

申请日：2016-12-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James D. Hansen ,  Joseph C. Dingeldein ,  Mary C. Doruff

IPC: A61C5/85 ,  B33Y80/00 ,  A61C5/77 ,  A61C5/62 ,  A61C13/00 ,  A61C9/00

Abstract: A custom tool for forming a dental restoration in a mouth of a patient includes a one-piece mold body providing for a customized fit with at least one tooth of the patient, the one-piece mold body including an occlusal portion forming an occlusal surface corresponding with an occlusal surface of the tooth, a mesial proximal portion forming a mesial proximal surface corresponding with a mesial proximal surface of the tooth, and a distal proximal portion forming a distal proximal surface corresponding with a distal proximal surface of the tooth. The mold body is configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of the tooth. The occlusal portion, the mesial proximal portion, and the distal proximal portion are based on three-dimensional scan data of the mouth of the patient.

公开(公告)号：US20210298882A1

公开(公告)日：2021-09-30

申请号：US17266309

申请日：2019-08-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joseph C. Dingeldein ,  John M. Pilgrim ,  Christopher R. Kokaisel ,  Katelyn M. Languell ,  James D. Hansen

IPC: A61C13/20 ,  A61C13/00 ,  A61C13/107 ,  A61C5/20

Abstract: A custom tool for forming a dental restoration in a mouth of a patient includes a facial mold body for a patient-specific, customized fit with the facial side of at least one tooth of the patient, wherein the facial mold body includes a restorative portion and a first engagement portion extending away from the restorative portion; a lingual mold body for a patient-specific, customized fit with the lingual side of the tooth of the patient, wherein the lingual mold body includes a restorative portion and a first engagement portion extending away from the restorative portion; wherein the first engagement portion of the facial mold body interlocks with the first engagement portion of the lingual mold body; and wherein the facial mold body and lingual mold body are configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of at least one tooth to be restored.

公开(公告)号：US20210108019A1

公开(公告)日：2021-04-15

申请号：US17047409

申请日：2019-06-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Tianyu Wu ,  Ying-Yuh Lu ,  Lin Chen ,  Jung-Sheng Wu ,  Ahmed S. Abuelyaman ,  James D. Hansen ,  Tianying Jiang ,  Erick L. Soto Cantu

IPC: C08F299/02 ,  C09D167/02 ,  C09D7/45 ,  C09D5/02 ,  C08J3/07

Abstract: The present disclosure provides an aqueous dispersion. The aqueous dispersion includes a) water; b) a surfactant having at least one ethylenically unsaturated group; and c) polyester particles dispersed in the water. The polyester particles include a water-insoluble polyester having a weight average molecular weight of 20 kiloDaltons or greater, and the polyester particles have an average diameter that is submicron in size. Further, the present disclosure provides a method of making the aqueous dispersion. The method includes a) dissolving a water-insoluble polyester in a water-immiscible solvent to form a polyester solution; b) combining the polyester solution with an aqueous solution including water and a surfactant; and c) removing at least a portion of the water-immiscible solvent to form the aqueous dispersion including polyester particles dispersed in the water. The present disclosure also provides a photopolymerizable composition including a) water; b) a surfactant; c) polyester particles dispersed in the water; d) a photoinitiator; e) at least one ethylenically unsaturated monomer dispersed in the water; and f) an optional polymerization inhibitor. The present disclosure also provides coatings and articles prepared from the aqueous dispersion or photopolymerizable composition.

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：US20200306016A1

公开(公告)日：2020-10-01

申请号：US16902644

申请日：2020-06-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James D. Hansen ,  Joseph C. Dingeldein ,  Shannon D. Scott ,  Joshua K. Schroeder ,  Bruce R. Broyles ,  Mary C. Doruff

IPC: A61C13/00 ,  A61C5/77 ,  A61C13/09 ,  A61C13/20

Abstract: A custom tool for forming a dental restoration in a mouth of a patient includes a mold body providing for a customized fit with at least one tooth of the patient. The mold body includes a facial portion forming a facial surface corresponding with a facial surface of the tooth, and a separate lingual portion forming a lingual surface corresponding with a lingual surface of the tooth. The mold body is configured to combine with the tooth of the patient to form a mold cavity encompassing missing tooth structure of the tooth.