公开(公告)号：US11925522B2

公开(公告)日：2024-03-12

申请号：US17458688

申请日：2021-08-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: A61C13/08 ,  A61C5/35 ,  A61C5/85

CPC classification number: A61C13/081 ,  A61C5/35 ,  A61C5/85

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

公开(公告)号：US11904031B2

公开(公告)日：2024-02-20

申请号：US16754186

申请日：2018-11-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Saswata Chakraborty ,  Benjamin C. MacMurray ,  Eric W. Nelson ,  Thomas P. Klun ,  Richard J. Pokorny ,  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: A61K6/62 ,  A61C7/08 ,  A61C7/00 ,  A61K6/893 ,  C08L75/14 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y10/00 ,  B29C64/124

CPC classification number: A61K6/62 ,  A61C7/002 ,  A61C7/08 ,  A61K6/893 ,  B29C64/124 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08L75/14

Abstract: An orthodontic article is described comprising the reaction product of a free-radically polymerizable resin; a first free-radical photoinitiator having sufficient absorbance at a first wavelength range; and a second free-radical initiator selected from a second photoinitiator having sufficient absorbance at a second wavelength range, wherein the second wavelength range is different than the first wavelength range, or a thermal free-radical initiator. In some embodiments, the first free-radical photoinitiator exhibits a maximum absorbance at a wavelength of the range of 370-380 nm or 320-330 nm and/or comprises photoinitiator groups selected from acyl phosphine oxide or alkyl amine acetophenone. Also described are photopolymerizable compositions and methods.

公开(公告)号：US11571284B2

公开(公告)日：2023-02-07

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 ,  A61C13/107

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.

公开(公告)号：US20230026846A1

公开(公告)日：2023-01-26

申请号：US17784192

申请日：2020-12-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James D. Hansen ,  Joseph C. Dingeldein ,  John M. Pilgrim

IPC: A61C7/14 ,  B33Y80/00 ,  A61C13/00 ,  B05D5/10

Abstract: A custom tool for bonding orthodontic appliances in a mouth of a patient, the custom tool comprising: a facial body for a patient-specific, customized fit with the facial side of a plurality of teeth of the patient, a lingual body for a patient-specific, customized fit with the lingual side of the plurality of the teeth of the patient, wherein the lingual body. wherein the facial body and lingual body are configured to combine with the teeth of the patient to position orthodontic appliances on the plurality of teeth.

公开(公告)号：US11553996B2

公开(公告)日：2023-01-17

申请号：US16640089

申请日：2018-08-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zeba Parkar ,  James D. Hansen ,  Tianyu Wu ,  Carsten Franke ,  Timothy D. Dunbar ,  Gregory A. Kobussen ,  Ahmed S. Abuelyaman ,  Bradley D. Craig

IPC: C08K7/16 ,  C08F2/46 ,  C08F2/50 ,  C08G61/04 ,  A61C13/00 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/124 ,  A61K6/887 ,  A61K6/17 ,  C08F222/10 ,  C08K3/36 ,  C08K9/02 ,  B33Y70/10 ,  B33Y80/00 ,  B29K509/02 ,  B29L31/00

Abstract: A radiation curable composition including at least one radiation hardenable component, a photo-initiator, and a filler material having a population of particulates in an amount greater than or equal to 50% by weight of the printable composition. The population of particulates exhibits a median diameter (D50) of greater than or equal to 0.3 micrometer on a volume-average basis as determined using the Particle Size Test Method, and the radiation curable composition exhibits a viscosity of less than or equal to 150 Pa s when measured using the Viscosity Test Method. A method, apparatus, and systems for producing composite articles by selectively exposing a portion of the radiation curable composition to a source of actinic radiation to at least partially cure the exposed portion of the radiation curable composition, thereby forming a hardened layer, preferably by an additive manufacturing process such as stereophotolithography, are also described. The composite articles may include composite dental restorations.

公开(公告)号：US11523888B2

公开(公告)日：2022-12-13

申请号：US16583548

申请日：2019-09-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： James D. Hansen ,  Joseph C. Dingeldein ,  Gareth A. Hughes ,  Gopal B. Haregoppa ,  Bastian P. Kirchner ,  Till Meurer ,  Holger Hauptmann

IPC: A61C13/00

Abstract: An additively manufactured dental crown with a wall having a bottom edge and an occlusal portion joined with the wall opposite the bottom edge. The wall and occlusal portion form an interior surface and an opposing exterior surface. By using additive manufacturing and materials for such, the dental crown can have thin walls with a thickness of less than 300 microns at the thinnest portion of it and can include fine printed features such as identifiers, internal ribs, slots, porous meshes, and retention elements.

公开(公告)号：US20220117699A1

公开(公告)日：2022-04-21

申请号：US17275515

申请日：2019-09-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: A61C5/85 ,  A61C5/20 ,  A61C5/77 ,  A61C13/00 ,  A61C13/20

Abstract: A custom tool for forming a dental restoration in a mouth of a patient includes a custom tool for forming a dental restoration in a mouth of a patient comprising: a mold body for a patient-specific, customized fit with the facial side and the lingual side of at least two adjacent teeth of the patient, and a flexible film, wherein the mold body is configured to combine with the flexible film to form a mold cavity encompassing missing tooth structure of at least one tooth to be restored.

公开(公告)号：US20210290349A1

公开(公告)日：2021-09-23

申请号：US17266431

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

Abstract: A custom tool for forming a dental restoration in a mouth of a patient. The custom tool 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, at least one aperture aligned with a portion of a surface of a tooth to be restored and at least one door having an inner surface forming a portion of the mold cavity encompassing missing tooth structure of the tooth to be restored, wherein the door mates with the aperture; 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; wherein the facial mold body and lingual mold body are configured to interlock together; 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：US20210186820A1

公开(公告)日：2021-06-24

申请号：US16754186

申请日：2018-11-20

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Saswata Chakraborty ,  Benjamin C. Mac Murray ,  Eric W. Nelson ,  Thomas P. Klun ,  Richard J. Pokorny ,  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: A61K6/62 ,  A61C7/08 ,  A61C7/00 ,  A61K6/893 ,  B29C64/124 ,  B33Y70/00 ,  B33Y80/00 ,  B33Y10/00 ,  C08L75/14

Abstract: An orthodontic article is described comprising the reaction product of a free-radically polymerizable resin; a first free-radical photoinitiator having sufficient absorbance at a first wavelength range; and a second free-radical initiator selected from a second photoinitiator having sufficient absorbance at a second wavelength range, wherein the second wavelength range is different than the first wavelength range, or a thermal free-radical initiator. In some embodiments, a 1 g/liter acetonitrile solution, at a pathlength of 1 cm, has an absorbance of greater than 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, or 0.10 at a wavelength of the first wavelength range when measured with a spectrophotometer. In some embodiments, the first free-radical photoinitiator exhibits a maximum absorbance at a wavelength of the range of 370-380 nm or 320-330 nm and/or comprises photoinitiator groups selected from acyl phosphine oxide or alkyl amine acetophenone. Also described are photopolymerizable compositions and methods.

公开(公告)号：US20190201296A1

公开(公告)日：2019-07-04

申请号：US16301211

申请日：2017-05-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Yizhong Wang ,  Zhisheng Yun ,  Eric S. Hansen ,  Joel D. Oxman ,  James D. Hansen ,  Bradley D. Craig ,  Tao Gong

IPC: A61K6/00 ,  A61K6/10 ,  A61C9/00

CPC classification number: A61K6/002 ,  A61C9/0053 ,  A61K6/0017 ,  A61K6/10

Abstract: Disclosed herein are aqueous dental coating compositions and methods for enhancing contrast of intraoral surfaces for 3-dimensional digital scanning. The compositions include: an aqueous solvent system; a water soluble polymer present at no greater than 5 wt. %, based on the total weight of the aqueous dental coating composition; hydrophilic particles; and hydrophobic particles, wherein the aqueous dental coating composition is a dispersion or a dispersion of the hydrophilic particles and hydrophobic particles in the aqueous solvent system can be formed by shaking the composition for 30 seconds.