公开(公告)号：US20250064688A1

公开(公告)日：2025-02-27

申请号：US18724440

申请日：2022-12-28

Applicant: Kuraray Noritake Dental Inc.

Inventor： Shinichiro KATO ,  Atsushi MATSUMOTO

IPC: A61K6/818 ,  A61K6/822 ,  B32B18/00 ,  C04B35/488 ,  C04B35/626 ,  C04B35/64

Abstract: The present invention provides a zirconia pre-sintered body having suitable shades, translucency, and strength. The present invention relates to a zirconia pre-sintered body comprising a layered structure of at least three layers containing zirconia and a stabilizer capable of preventing a phase transformation of zirconia, the layered structure including at least two layers that differ from one another in the content of the stabilizer relative to the total mole of the zirconia and the stabilizer, the layered structure including at least two layers having substantially the same stabilizer content relative to the total mole of the zirconia and the stabilizer, the zirconia pre-sintered body containing a coloring component in all of the layers having substantially the same stabilizer content, and the layers having substantially the same stabilizer content differing from one another in the composition of the coloring component.

公开(公告)号：US20250011223A1

公开(公告)日：2025-01-09

申请号：US18740385

申请日：2024-06-11

Applicant: Ivoclar Vivadent AG

Inventor： Elke Signer-Apel ,  Wolfram Höland ,  Marcel Schweiger ,  Christian Ritzberger ,  Harald Bürke ,  Volker Rheinberger

IPC: C03C10/00 ,  A61C5/70 ,  A61C5/77 ,  A61C8/00 ,  A61C13/00 ,  A61C13/08 ,  A61C13/083 ,  A61K6/78 ,  A61K6/804 ,  A61K6/807 ,  A61K6/818 ,  A61K6/833 ,  C01B33/32 ,  C03B32/02 ,  C03C3/097 ,  C03C4/00

Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.

公开(公告)号：US12138133B2

公开(公告)日：2024-11-12

申请号：US16759651

申请日：2018-10-26

Applicant: UNIVERSIDADE DO MINHO

Inventor： Filipe Samuel Correia Pereira Silva ,  Paulo Filipe Salgado Pinto ,  Óscar Samuel Novais Carvalho

IPC: A61C13/00 ,  A61C5/20 ,  A61C5/77 ,  A61C8/00 ,  A61C13/08 ,  A61C13/083 ,  A61K6/802 ,  A61K6/804 ,  A61K6/813 ,  A61K6/818 ,  B28B11/12 ,  C04B35/64 ,  C04B41/00 ,  B28B3/02

Abstract: The present disclosure relates to a ceramic structure for dental application, preferably dental restoration, process for obtaining it and its uses. The process now disclosed comprises computer-controlled machining (CNC), particularly by milling, to obtain a ceramic structure, for example dental covers, which reach thicknesses between 0.05 and 0.4 millimeters.

公开(公告)号：US12121598B2

公开(公告)日：2024-10-22

申请号：US17277566

申请日：2019-09-20

Applicant: KULZER GMBH

Inventor： Alfred Hohmann

IPC: C08L9/00 ,  A61K6/62 ,  A61K6/77 ,  A61K6/818 ,  B33Y70/00 ,  B33Y80/00 ,  B60C1/00 ,  C08L33/10

CPC classification number: A61K6/62 ,  A61K6/77 ,  A61K6/818 ,  B33Y70/00 ,  B33Y80/00 ,  C08L33/10 ,  C08L2203/02

Abstract: A polymerisable, radiation curable composition comprising (i) monomers comprising:

(a) at least one acrylic acid ester having an additional carboxy group, acrylic acid ester having at least one additional anhydride group of carboxy groups, and/or derivative of the afore-mentioned acrylic acid esters,
(b) at least one di-functional acrylate having a bivalent alicyclic group and/or at least one di-functional methacrylate having a bivalent alicyclic group, and
(c) optionally, at least one disubstituted 4,4′-di(oxabenzene) dialkyl methane of formula I, and
(ii) at least one further component comprising:
(d) at least one photoinitiator for the UV and/or Vis spectral region or a photoinitiator system.


The composition is suitable for producing dental prosthetic parts, orthopaedic appliances or dental pre-forms, having a) a flexural strength 50 MPa, b) an E-modulus ≥1500 MPa, c) a bending fracture ≥1.1 MPa m1/2, and/or d) a fracture work >250 J/m2 DIN EN ISO 20795-2.

公开(公告)号：US12097087B2

公开(公告)日：2024-09-24

申请号：US18340416

申请日：2023-06-23

Applicant: James R. Glidewell Dental Ceramics, Inc.

Inventor： Jae Won Kim

IPC: A61L24/12 ,  A61C8/00 ,  A61C13/083 ,  A61K6/58 ,  A61K6/80 ,  A61K6/802 ,  A61K6/818 ,  A61K6/824 ,  A61L27/34 ,  A61L27/42 ,  C04B41/45 ,  A61C5/73 ,  A61C13/00 ,  A61K6/50 ,  A61K6/56 ,  C08G77/58 ,  C09D183/14

CPC classification number: A61C8/0013 ,  A61C8/0012 ,  A61C8/0018 ,  A61C13/083 ,  A61K6/58 ,  A61K6/802 ,  A61K6/818 ,  A61K6/824 ,  A61L27/34 ,  A61L27/427 ,  C04B41/4535 ,  A61C5/73 ,  A61C8/005 ,  A61C8/008 ,  A61C13/0022 ,  A61K6/50 ,  A61K6/56 ,  A61L2430/12 ,  C08G77/58 ,  C09D183/14

Abstract: A method for making a ceramic body comprised of a ceramic material having an inhibitory effect on bacterial growth is provided. A dental prosthesis may be made of a ceramic material that comprises a molybdenum-containing component on a portion of the prosthesis that contacts the gingival surface of a patient. In one method, a porous zirconia ceramic structure is shaped in the form of a dental prosthesis, and then infiltrated with a molybdenum-containing composition, before sintering to densify the ceramic structure.

公开(公告)号：US12059483B2

公开(公告)日：2024-08-13

申请号：US16975188

申请日：2019-02-21

Applicant: Solventum Intellectual Properties Company

Inventor： Holger Hauptmann ,  Martin Goetzinger ,  Jacqueline C. Rolf ,  Sybille Schmittner

IPC: A61K6/818 ,  A61K6/833 ,  C03C3/06 ,  C03C3/076 ,  C03C4/00 ,  C04B41/00 ,  C04B41/50 ,  C04B41/86 ,  C04B111/00 ,  C04B111/80

CPC classification number: A61K6/818 ,  A61K6/833 ,  C03C3/06 ,  C03C3/076 ,  C03C4/0021 ,  C04B41/0072 ,  C04B41/009 ,  C04B41/5022 ,  C04B41/86 ,  C04B2111/00836 ,  C04B2111/805

Abstract: The invention relates to a process of producing a dental zirconia restoration, the dental zirconia restoration having an outer and an inner surface, the process comprising the step of firing a porous dental zirconia restoration and a glass until the porous dental zirconia restoration is sintered, the glass being located during the firing step on at least a portion of the outer surface of the porous dental zirconia restoration, wherein the zirconia material of the porous dental zirconia restoration and the glass are selected such that during the firing step the glass infiltrates the pores of the porous dental zirconia restoration to an extent of not more than 5 μm in depth. The invention also relates to a sintered dental zirconia restoration obtainable by such a process and a kit of parts comprising a porous dental zirconia mill blank and a surface treating agent containing a glass for use in such a process.

公开(公告)号：US20240173213A1

公开(公告)日：2024-05-30

申请号：US18431483

申请日：2024-02-02

Applicant: James R. Glidewell Dental Ceramics, Inc.

Inventor： Jae Won Kim ,  Akash

IPC: A61K6/78 ,  A61K6/818 ,  A61K6/822 ,  B05D1/02 ,  B05D1/28 ,  B05D3/02 ,  C04B41/00 ,  C04B41/50 ,  C04B41/51 ,  C04B41/52 ,  C04B41/88 ,  C04B41/89 ,  C04B111/00 ,  C04B111/80

CPC classification number: A61K6/78 ,  A61K6/818 ,  A61K6/822 ,  B05D1/02 ,  B05D1/28 ,  B05D3/0272 ,  C04B41/009 ,  C04B41/5012 ,  C04B41/515 ,  C04B41/52 ,  C04B41/88 ,  C04B41/89 ,  C04B2111/00836 ,  C04B2111/80

Abstract: A method for enhancing optical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. The porous or pre-sintered stage of a ceramic body is treated with two different yttrium-containing compositions and sintered, resulting in sintered ceramic bodies having enhanced optical properties. The enhanced optical properties may be substantially permanent, remaining for the useful life of the sintered ceramic body.

公开(公告)号：US11912629B2

公开(公告)日：2024-02-27

申请号：US17474407

申请日：2021-09-14

Applicant: James R. Glidewell Dental Ceramics, Inc.

Inventor： Jae Won Kim ,  Enoch Park

IPC: C04B41/00 ,  A61K6/20 ,  A61K6/818 ,  C04B35/48 ,  C04B35/64 ,  C04B41/45 ,  C04B41/50

CPC classification number: C04B41/009 ,  A61K6/20 ,  A61K6/818 ,  C04B35/48 ,  C04B35/64 ,  C04B41/4535 ,  C04B41/5027 ,  C04B2235/3246 ,  C04B2235/3251 ,  C04B2235/96

Abstract: A method for enhancing mechanical properties of sintered, zirconia ceramic bodies and zirconia ceramic dental restorations is provided. A porous or pre-sintered stage of a ceramic body may be treated with a tantalum-containing composition prior to sintering. Alternatively, zirconia ceramic powder may be coated with a tantalum-containing composition prior to forming a shaped ceramic body. After sintering, the resulting ceramic bodies have enhanced mechanical properties, such as greater fracture toughness, without a significant decrease in optical properties.

公开(公告)号：US11858867B2

公开(公告)日：2024-01-02

申请号：US17388007

申请日：2021-07-29

Applicant: ChengDu Besmile Medical Technology Corp. Ltd.

Inventor： Xinzhang Yan ,  Jiao Li ,  Qin Ma ,  Moushan Liu ,  Dan Wu ,  Shuai Liu

IPC: C04B41/50 ,  A61K6/818 ,  A61C13/08 ,  C04B35/48 ,  C04B41/00 ,  C04B41/45 ,  C04B41/87

CPC classification number: C04B41/5045 ,  A61C13/082 ,  A61K6/818 ,  C04B35/48 ,  C04B41/009 ,  C04B41/0072 ,  C04B41/4539 ,  C04B41/87 ,  C04B2235/3244

Abstract: The present disclosure relates to the field of dental material treatment, and particularly to a dental zirconia treatment technology. The specific technical solution is as follows: a zirconia treatment method, mainly involving color masking the zirconia, surface roughening the zirconia, coloring the zirconia, surface protection treatment and additional protective film treatment. Based on this treatment method, a brand-new color masking liquid, coloring liquid and adhesive solution are proposed. The present zirconia treatment technology not only meets the individualized requirements of patients for teeth, but also meets the requirements of dentists for convenient operation, so that it is of great value in application and popularization on the market.

公开(公告)号：US11850110B2

公开(公告)日：2023-12-26

申请号：US18161454

申请日：2023-01-30

Applicant: James R. Glidewell Dental Ceramics, Inc.

Inventor： Marco Antonio Jokada ,  David Christopher Leeson ,  Vaheh Golestanian Nemagrdi ,  Prabhakar Thirugnanasambandam ,  Kenad Destanovic

IPC: A61C13/00 ,  A61C5/77 ,  A61K6/818 ,  A61C13/083

CPC classification number: A61C5/77 ,  A61C13/0004 ,  A61C13/083 ,  A61K6/818

Abstract: A method is provided for shaping a custom anterior dental restoration from a preform, wherein the preform comprises a preform body and a preform stem. A method is further disclosed for generating one or more nesting positions for the restoration design within the geometry of the preform body relative to the position of the preform stem. A method is further disclosed for generating machining instructions based on the selected nesting position to optimize machining for chair-side applications.