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1. 发明公开

EP2207499A1 SLIP-CASTING METHOD OF FABRICATING ZIRCONIA BLANKS 审中-公开
标题翻译：注浆成型用于生产ZIRKONOXIDFORMLINGEN
公开(公告)号：EP2207499A1
公开(公告)日：2010-07-21
申请号：EP08847247.7
申请日：2008-11-05
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： MOON, Haksung
IPC分类号： A61C13/00 , A61K6/02
CPC分类号： A61C13/0003 , A61C13/0022 , A61K6/04
摘要： A process for fabricating pre-sintered zirconia blanks that are then computer machined and sintered to form dental appliances having highly advantageous features. The principal steps of a preferred embodiment of that process comprise a) preparing a ceramic slurry of binderless zirconia powder; b) subjecting the slurry to attrition milling; c) preparing a vacuum assisted slip casting mold and pouring the milled slurry into the slip-casting mold; d) after casting, excess slurry is poured from the mold and a consolidated zirconia blank is removed; e) drying the blank and pre-sintering it to form solid blanks ready for CAD/CAM machining and sintering to net shape.

2. 发明公开

EP2719370A3 Improved dental investment material 有权
标题翻译：改进的牙科材料投资
公开(公告)号：EP2719370A3
公开(公告)日：2014-07-02
申请号：EP13188279.7
申请日：2013-10-11
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： Castillo, Rodolfo , Carden, Robin
IPC分类号： A61K6/02
CPC分类号： C04B35/14 , A61K6/0273
摘要： A new investment material for the pressing loss wax technique for dental glass ceramics. It has been found that the addition of fillers to a magnesium phosphate investment, specifically metal oxides with elevated melting points ranging from 1800 to 2800ºC, provides a protection barrier against the reaction between the high alkaline content of the glass ceramic and the investment during the pressing process in the range of 800 to 950 ºC. Specifically, it has been found that the addition of aluminum oxide of about 2 to 5 percent of the total dry mix in combination with any of the zirconium oxide, yttrium stabilized zirconium, titanium dioxide and boron nitride in proportions of about 3.5%, enhances the barrier against a surface reaction and improves the thermal properties of the investment.

3. 发明授权

EP2434981B1 A METHOD OF DESIGNING AND FABRICATING PATIENT-SPECIFIC RESTORATIONS FROM INTRA-ORAL SCANNING OF A DIGITAL IMPRESSION COPING 有权
公开(公告)号：EP2434981B1
公开(公告)日：2019-06-26
申请号：EP10780923.8
申请日：2010-05-26
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： BULLIS, Grant , NGUYEN, Tao , MINZENMAYER, Greg
IPC分类号： A61C8/00 , A61B6/14 , A61C13/00 , A61C9/00 , A61B5/055

4. 发明授权

EP2282978B1 LITHIUM SILICATE GLASS CERAMIC AND METHOD FOR FABRICATION OF DENTAL APPLIANCES 有权
公开(公告)号：EP2282978B1
公开(公告)日：2018-09-19
申请号：EP09730854.8
申请日：2009-04-10
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： CASTILLO, Rodolfo
IPC分类号： C03C3/085 , C03C3/087 , C03C10/00 , C03C4/00 , A61K6/02 , A61K6/027
CPC分类号： C03C3/097 , A61K6/0235 , A61K6/024 , A61K6/025 , A61K6/0255 , A61K6/0273 , C03C4/0021 , C03C10/0027
摘要： The present invention relates to preparing an improved lithium silicate glass ceramic for the manufacture of blocks for dental appliance fabrication using a CAD/CAM process. The lithium silicate material has a chemical composition that is different from those reported in the prior art including 8 to 10% of germanium dioxide in the final composition. The softening points are close to the crystallization final temperature of 830° C. indicating that the samples will support the temperature process without shape deformation. The resulting material has improved castability and higher density.

5. 发明公开

EP2719370A2 Improved dental investment material 有权
标题翻译：精灵牙科Einbettmaterial
公开(公告)号：EP2719370A2
公开(公告)日：2014-04-16
申请号：EP13188279.7
申请日：2013-10-11
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： Castillo, Rodolfo , Carden, Robin
IPC分类号： A61K6/02
CPC分类号： C04B35/14 , A61K6/0273
摘要： A new investment material for the pressing loss wax technique for dental glass ceramics. It has been found that the addition of fillers to a magnesium phosphate investment, specifically metal oxides with elevated melting points ranging from 1800 to 2800ºC, provides a protection barrier against the reaction between the high alkaline content of the glass ceramic and the investment during the pressing process in the range of 800 to 950 ºC. Specifically, it has been found that the addition of aluminum oxide of about 2 to 5 percent of the total dry mix in combination with any of the zirconium oxide, yttrium stabilized zirconium, titanium dioxide and boron nitride in proportions of about 3.5%, enhances the barrier against a surface reaction and improves the thermal properties of the investment.
摘要翻译：牙科玻璃陶瓷压损蜡技术的新投资材料。已经发现，向磷酸镁投资添加填料，特别是熔点高达1800至2800℃的金属氧化物，为玻璃陶瓷的高碱性含量与压制过程中的投资提供了保护隔离工艺范围在800至950ºC。具体地，已经发现，加入总干混合物的约2-5％的氧化铝与任何氧化锆，钇稳定的锆，二氧化钛和氮化硼以约3.5％的比例的组合，增加了防止表面反应，提高投资的热性能。

6. 发明公开

EP3248568A1 NANO-CRYSTALLINE DENTAL CERAMICS 审中-公开
标题翻译：纳米结晶牙科陶瓷
公开(公告)号：EP3248568A1
公开(公告)日：2017-11-29
申请号：EP17179079.3
申请日：2011-04-13
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： Knapp, Kenneth E. , Maginnis, Steven M. , Friebauer, Wolfgang , Carden, Robin A.
IPC分类号： A61C13/00 , A61K6/02 , A61K6/00 , C01G25/00 , C01G1/02 , B82Y30/00 , C04B35/486 , C01B32/956 , C01B32/921 , C01B32/914 , C04B35/632 , C01G25/02
CPC分类号： C04B35/6325 , A61C13/0022 , A61K6/0008 , A61K6/024 , A61K6/025 , B82Y30/00 , C01B32/914 , C01B32/921 , C01B32/956 , C01G1/02 , C01G25/02 , C01P2002/54 , C01P2004/62 , C04B35/486 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3272 , C04B2235/604 , C04B2235/765 , C04B2235/781 , C04B2235/94 , C04B2235/96 , C04B2235/9653
摘要： Unlike conventional dental ceramic powder made by grinding, dental ceramic nanocrystals are formed by vaporization into individual particles. Tetragonal zirconia particles thus formed are not broken into pieces, and so do not transform to weaker monoclinic zirconia and weaker sintered products. The particles created by this approach can be much smaller, and dental prostheses sintered from this powder can be stronger and more realistic. For instance, the smaller size of sintered tetragonal zirconia crystals increases optical translucence by reducing scattering from birefringence, and the small average particle size and tight distribution of sizes and shapes can essentially eliminate pores in a sintered product. Cylindrical and spherical particles can be manufactured by this approach, whereas prior art dental ceramic particles were generally neither. In addition to tetragonal zirconia, various dental ceramic particles and powders can be made by this approach, which can be used to form various sintered dental prostheses.
摘要翻译：与通过研磨制成的传统牙科陶瓷粉末不同，牙科陶瓷纳米晶体通过汽化形成单个颗粒而形成。由此形成的四方晶系氧化锆颗粒不会碎成碎片，因此不会转变成较弱的单斜晶系氧化锆和较弱的烧结产物。通过这种方法产生的颗粒可以小得多，并且由这种粉末烧结的牙齿假体可以更坚固和更现实。例如，较小尺寸的烧结四方晶系氧化锆晶体通过减少来自双折射的散射而增加光学半透明度，并且小的平均粒度和尺寸和形状的紧密分布可基本上消除烧结产品中的孔隙。通过这种方法可以制造圆柱形和球形颗粒，而现有技术的牙科陶瓷颗粒通常都不是。除四方氧化锆之外，可以通过这种方法制造各种牙科陶瓷颗粒和粉末，其可以用于形成各种烧结牙科修复体。

7. 发明公开

EP2652062A1 INDIRECT RESTORATION TECHNOLOGY 有权
标题翻译： INDIREKTE WIEDERHERSTELLUNGSTECHNOLOGIE
公开(公告)号：EP2652062A1
公开(公告)日：2013-10-23
申请号：EP11848739.6
申请日：2011-12-13
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： CASTILLO, Rodolfo , CARDEN, Robin, A. , FRIEBAUER, Wolfgang
IPC分类号： C09K3/00 , A61C5/10
CPC分类号： A61C5/73 , A61C5/70 , A61C5/77 , A61C13/0835 , C03B11/14
摘要： Dental restorations such as crowns, are made from lithium silicate glass ceramic that is heated and pressed onto a metal substrate, the latter being shaped to an impression or scan of the area of the mouth to receive the restoration. The metal substrate is made from an alloy selected to exhibit a coefficient of thermal expansion which is slightly greater than the CTE of the lithium silicate. In a preferred embodiment, the CTE of the lithium silicate glass ceramic is in the range of 11.5 to 12.5 and the alloy is selected to have a CTE of 12 to 13.5. A palladium tin alloy provides that CTE in the preferred embodiment.
摘要翻译：诸如牙冠的牙科修复体由加热并压在金属基底上的硅酸锂玻璃陶瓷制成，后者形成为口腔区域的印模或扫描以接收修复物。金属基底由选择为显示稍大于硅酸锂的CTE的热膨胀系数的合金制成。在优选的实施方案中，硅酸锂玻璃陶瓷的CTE在11.5至12.5的范围内，并且选择合金的CTE为12至13.5。钯锡合金在优选实施例中提供了CTE。

8. 发明公开

EP2282978A1 LITHIUM SILICATE GLASS CERAMIC AND METHOD FOR FABRICATION OF DENTAL APPLIANCES 有权
标题翻译：硅酸锂陶瓷及其制造方法牙科器械
公开(公告)号：EP2282978A1
公开(公告)日：2011-02-16
申请号：EP09730854.8
申请日：2009-04-10
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： CASTILLO, Rodolfo
IPC分类号： C03C3/085 , C03C3/087
CPC分类号： C03C3/097 , A61K6/0235 , A61K6/024 , A61K6/025 , A61K6/0255 , A61K6/0273 , C03C4/0021 , C03C10/0027
摘要： The present invention relates to preparing an improved lithium silicate glass ceramic for the manufacture of blocks for dental appliance fabrication using a CAD/CAM process. The lithium silicate material has a chemical composition that is different from those reported in the prior art including 8 to 10% of germanium dioxide in the final composition. The softening points are close to the crystallization final temperature of 83O0C indicating that the samples will support the temperature process without shape deformation. The resulting material has improved castability and higher density.

9. 发明公开

EP4096569A1 TEETH SEGMENTATION USING NEURAL NETWORKS 审中-实审
公开(公告)号：EP4096569A1
公开(公告)日：2022-12-07
申请号：EP21748002.9
申请日：2021-01-29
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： AZEMIKOV, Sergei , CHELNOKOV, Fedor , TOLSTOV, Andrey , NIKOLSKIY, Sergey
IPC分类号： A61C13/00

10. 发明授权

EP2719370B1 Dental investment material 有权
公开(公告)号：EP2719370B1
公开(公告)日：2019-10-09
申请号：EP13188279.7
申请日：2013-10-11
申请人： James R. Glidewell Dental Ceramics, Inc.
发明人： Castillo, Rodolfo , Carden, Robin
IPC分类号： A61K6/027

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