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公开(公告)号：US20240308900A1
公开(公告)日：2024-09-19
申请号：US18605732
申请日：2024-03-14
申请人： Ivoclar Vivadent AG
发明人： Corina Serban , Urs Bolle , Christin Wildner , Frank Rothbrust , Sebastian Krolikowski , Christian Ritzberger
CPC分类号： C03C1/04 , C01G25/006 , C03C8/20 , C03C10/16 , A61C13/082 , A61C13/083 , C01P2002/34 , C01P2002/52 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/63
摘要： A dental material comprising a pigment, wherein the pigment contains Al, Cr and one or more of Y, La and lanthanides. The dental material allows mimicking the red coloration of natural teeth and natural oral mucosa. Also provided is the use of the dental material and the pigment and starting compositions for making the pigment in the preparation of a dental restoration. Furthermore, a process for preparing a dental restoration and a process for preparing the pigment is provided.
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公开(公告)号：US20240228365A9
公开(公告)日：2024-07-11
申请号：US18474573
申请日：2023-09-26
发明人： Zongyu LI , Wei LIU , Jian WANG , Jianjun LIU
IPC分类号： C03C10/00 , A61C13/00 , A61C13/083 , C03B19/06 , C03B19/10 , C03B32/02 , C03C4/00 , C03C4/12
CPC分类号： C03C10/0009 , A61C13/0006 , A61C13/083 , C03B19/063 , C03B19/1045 , C03B32/02 , C03C4/0021 , C03C4/12 , C03C10/0054 , C03C2204/00
摘要： Disclosed are a glass ceramic material, a preparation method thereof, and a denture. The glass ceramic material includes the following components by mass percentage: 58% to 72% of SiO2, 0% to 4% of Al2O3, 0% to 5% of Na2O, 3% to 8% of K2O, 8% to 17% of Li2O, 2.5% to 5% of P2O5, 0% to 2% of MgO, 0% to 2.5% of B2O3, 0% to 5% of ZnO and 0% to 3% of ZrO2. In the present application, by optimizing the composition and ratio of the glass ceramic material, and combining with a matching process system, it is possible to control the formation of lithium disilicate while the crystallinity of lithium metasilicate glass ceramic can be improved without an introduction of a high ratio of zirconia content, thereby improving the grinding performance of the glass ceramic. The present application is applicable to the field of material technology.
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公开(公告)号：US11986364B2
公开(公告)日：2024-05-21
申请号：US17096381
申请日：2020-11-12
申请人： HASS CO., LTD.
发明人： Hyung Bong Lim , Yong Su Kim
IPC分类号： A61C13/00 , A61C13/08 , A61C13/083 , B28B11/04 , B28B11/08 , B28B11/12 , C03C4/00 , C03C10/00
CPC分类号： A61C13/0022 , A61C13/082 , A61C13/083 , B28B11/044 , B28B11/0845 , B28B11/12 , C03C4/0021 , C03C10/0027
摘要： Disclosed is a machinable dental bulk block that is a glass ceramic block including an amorphous glass matrix and crystalline phases introduced into the matrix. A major crystalline phase is lithium disilicate and a minor crystalline phase is lithium phosphate. The dental block is made of a functionally gradient material in which the major crystalline phase exhibits a gradient of particle sizes in a depth direction of the dental block and which has no interface at a point where the gradient of particle sizes of the major crystalline phase changes. The dental bulk block is useful for production of a dental prosthesis (artificial tooth) similar to a natural tooth. The dental bulk block can reduce time and the number of processing steps to manufacture a dental prosthesis and provides improved structural stability through good force distribution obtained by functionally graded mechanical properties.
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公开(公告)号：US20240138963A1
公开(公告)日：2024-05-02
申请号：US18406492
申请日：2024-01-08
IPC分类号： A61C13/00 , A61C13/083 , A61C13/20 , A61K6/40 , G05B19/4099
CPC分类号： A61C13/0004 , A61C13/0006 , A61C13/0022 , A61C13/083 , A61C13/20 , A61K6/40 , G05B19/4099 , G05B2219/35134
摘要： A method is provided for shaping a custom 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.
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公开(公告)号：US20240130934A1
公开(公告)日：2024-04-25
申请号：US18392580
申请日：2023-12-21
申请人： HASS CO., LTD.
发明人： Hyung Bong LIM , Sung Min KIM , Sung Ho HA , Moon Chang KIM , Hwan Soon KOH
CPC分类号： A61K6/833 , A61C13/083 , A61K6/17 , C03B32/02 , C03C4/0021 , C03C10/00 , C03C14/00 , C03C2204/04 , C03C2214/12 , C03C2214/20
摘要： Disclosed is a bulk block for manufacturing a prosthesis having high aesthetics and processability required for one-day dental prosthetic materials, which is a dental composite bulk block comprising a glass ceramic matrix and a polymer, wherein the glass ceramic matrix consists of an amorphous glass matrix and a crystalline phase dispersed in the glass matrix, the crystalline phase comprises as a main crystalline phase at least one selected from a leucite crystalline phase and a lithium disilicate crystalline phase, and has an average particle diameter of 0.01-1.0 μm, and the polymer is included in an amount of 20-40 wt % with respect to the weight of the total bulk block. The bulk block has the advantages of improved mechanical properties, being capable of preventing microleakage, exhibiting excellent aesthetics, and enabling machining.
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公开(公告)号：US20240101483A1
公开(公告)日：2024-03-28
申请号：US18272756
申请日：2022-01-19
申请人： TOSOH CORPORATION
发明人： Sho AZECHI , Yuki USHIO , Takahiro SHIMIZU , Yuya HIGUCHI , Hitoshi NAGAYAMA , Hiroyuki FUJISAKI , Kenji IMAI , Risa KAWASHIMA
IPC分类号： C04B35/488 , A61C13/08 , A61C13/083 , A61K6/818 , C04B35/64
CPC分类号： C04B35/4885 , A61C13/082 , A61C13/083 , A61K6/818 , C04B35/64 , C04B2235/3217 , C04B2235/3224 , C04B2235/3246 , C04B2235/444 , C04B2235/5409 , C04B2235/725 , C04B2235/9661
摘要： To provide at least one of: a powder composition from which a calcined body with similar processability can be produced without requiring the application of different forming conditions and calcination conditions for each composition; a method for producing the powder composition; a calcined body produced from the powder composition; a method for producing the calcined body; and uses thereof.
A powder composition including: two or more types of zirconia in which a lanthanoid rare-earth element is dissolved; a transition metal element other than zirconium and hafnium; and a remainder composed of zirconia stabilized only by one or more selected from the group consisting of yttrium, calcium and magnesium, wherein a different lanthanoid rare-earth element is dissolved in each zirconia in which the lanthanoid rare-earth element is dissolved, and a transition metal element content is 1500 ppm or less.-
公开(公告)号：US20240090975A1
公开(公告)日：2024-03-21
申请号：US18522574
申请日：2023-11-29
发明人： Marco Antonio Jokada , David Christopher Leeson , Vaheh Golestanian Nemagrdi , Prabhakar Thirugnanasambandam , Kenad Destanovic
IPC分类号： A61C5/77 , A61C13/00 , A61C13/083 , A61K6/818
CPC分类号： A61C5/77 , A61C13/0004 , A61C13/083 , A61K6/818
摘要： 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.
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公开(公告)号：US20240041574A1
公开(公告)日：2024-02-08
申请号：US18382340
申请日：2023-10-20
申请人： DENTSPLY SIRONA Inc.
发明人： Markus VOLLMANN , Lothar VOLKL , Stefan FECHER , Carsten WIESNER
IPC分类号： A61C13/00 , A61C13/083 , A61C13/09 , A61C5/70 , A61C13/08 , A61K6/818 , A61K6/822 , A61K6/824 , A61K6/833 , A61C5/77 , B29C43/14
CPC分类号： A61C13/0022 , A61C13/083 , A61C13/09 , A61C5/70 , A61C13/082 , A61K6/818 , A61K6/822 , A61K6/824 , A61K6/833 , A61C5/77 , A61C13/0006 , B29C43/146 , B33Y80/00
摘要： The invention relates to a method for the production of a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a mold and wherein the materials are pressed and after pressing are sintered. Thereby, a layer of the first ceramic material is filled into the mold, a first open cavity is formed in the layer, the second ceramic material is filled into the first open cavity and the materials are pressed together and are then heat-treated. Both the first ceramic material and the second ceramic material contain, or consists of, lithium silicate glass ceramic.
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公开(公告)号：US20240034684A1
公开(公告)日：2024-02-01
申请号：US18013921
申请日：2021-07-01
发明人： Shinichiro KATO , Atsushi MATSUMOTO
IPC分类号： C04B35/488 , C04B35/64 , A61C13/00 , A61C13/083 , A61C13/08
CPC分类号： C04B35/488 , C04B35/64 , A61C13/0004 , A61C13/083 , A61C13/0022 , A61C13/082 , C04B2235/3246 , C04B2235/3279 , C04B2235/3239 , C04B2235/9661 , C04B2235/6567 , C04B2235/612
摘要： The present invention provides a zirconia pre-sintered body that exhibits suitable shade, translucency, and strength with short firing. The present invention relates to a zirconia pre-sintered body comprising a multilayer structure including at least three layers containing zirconia and a stabilizer capable of reducing a phase transformation of zirconia, the zirconia comprising predominantly monoclinic crystal system, the multilayer 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 multilayer 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 color 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 color component.
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公开(公告)号：US20230380944A1
公开(公告)日：2023-11-30
申请号：US18029692
申请日：2021-10-01
IPC分类号： A61C13/08 , A61C13/083 , A61K6/818 , A61K6/78
CPC分类号： A61C13/082 , A61C13/083 , A61K6/818 , A61K6/78
摘要： The present invention provides a dental ceramic coloring solution with which the desired shade can be imparted to a dental ceramic while improving the strength of the dental ceramic. The present invention relates to a coloring solution for coloring a dental ceramic, comprising a coloring component, a solvent, and a Zr component.
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