Abstract:
A dental composition for a dental veneer (12) and a method of forming a dental veneer (12) are provided. The dental composition includes a ceramic composition and lanthanum oxide, the lanthanum oxide forming a mixture with the ceramic composition. In use, the mixture is applied to a zirconia coping and sintered before being cooled to room temperature, the sintered mixture is further tempered at a temperature of between about 400 degree Celsius (°C) and about 475 °C for a period of between about 4 hours (h) and about 24 h.
Abstract:
The invention relates to a method to produce a medical form body of lithium silicate glass ceramic. To increase its strength it is proposed that a surface compressive stress is created in a form body of lithium silicate glass, or containing lithium silicate glass, through the replacement of lithium ions by alkali metal ions of greater diameter. For this purpose the form body is covered with a paste that contains alkali metal.
Abstract:
Provided herein are high performance dental restoration compositions, particularly two-part compositions having good self cure times. In particular, compositions provided herein are useful in restoring large caries, including Class I and Class II cavities.
Abstract:
The present invention relates to cubic stabilized zirconia compositions produced by a melting process for use in dental applications. The dental application may be a chair- side medical treatment. The invention also relates to novel dental articles comprising said cubic stabilized zirconia compositions. Preferred dental articles are crowns, bridges, inlays, onlays, veneers, facings, crown frameworks, bridged frameworks, implants, abutments, copings or orthodontic appliances. Further, the invention relates to a process for the production of a dental article comprising cubic stabilized zirconia compositions produced by a melting process.
Abstract:
The present invention relates to cubic stabilized zirconia compositions produced by a melting process for use in dental applications. The dental application may be a chair- side medical treatment. The invention also relates to novel dental articles comprising said cubic stabilized zirconia compositions. Preferred dental articles are crowns, bridges, inlays, onlays, veneers, facings, crown frameworks, bridged frameworks, implants, abutments, copings or orthodontic appliances. Further, the invention relates to a process for the production of a dental article comprising cubic stabilized zirconia compositions produced by a melting process.
Abstract:
The present invention is directed to a process for producing a sintered lithium disilicate glass ceramic dental restoration out of a porous 3-dim article, the process comprising the step of sintering the porous 3-dim article having the shape of a dental restoration with an outer and inner surface to obtain a sintered lithium disilicate ceramic dental restoration, the sintered lithium disilicate glass ceramic dental restoration comprising - Si oxide calculated as SiO2 from 55 to 80 wt.-%, - Li oxide calculated as Li2O from 7 to 16 wt.-%, - Al oxide calculated as Al2O3 from 1 to 5 wt.-%, and - P oxide calculated as P2O5 from 1 to 5 wt.-%, wt.-% with respect to the weight of the dental restoration, the sintering being done under reduced atmospheric pressure conditions, the reduced atmospheric pressure conditions being applied at a temperature above 600°C. The present invention is also directed to a kit of parts comprising a porous 3-dim article having the shape of a dental milling block and a respective instruction of use.
Abstract translation:本发明涉及一种由多孔三维制品制造二硅酸锂玻璃陶瓷烧结烧结体的方法,该方法包括将具有外部形状的牙科修复物的多孔三维制品 和内表面以获得二硅酸烧结二氧化硅陶瓷牙科修复体,所述烧结的二硅酸锂玻璃陶瓷牙科修复物包含以SiO 2计为55〜80重量%的氧化硅氧化物,以Li 2 O计为7〜16重量% %, - Al氧化物计算为1至5重量%的Al 2 O 3和以P 2 O 5计算的氧化铝相对于牙科修复体的重量为1至5重量%,重量%,烧结为 在降低的大气压力条件下进行,在600℃以上的温度下施加降低的大气压条件。 本发明还涉及一种包括具有刨花板形状的多孔三维制品和相应的使用说明书的成套工具。
Abstract:
Es werden Lithiumdisilikat-Apatit-Glaskeramiken mit Gehalt an Übergangsmetalloxid beschrieben, die sich durch eine hohe chemische Beständigkeit auszeichnen und deren Transluzenz in gewünschter Weise eingestellt werden kann und die daher insbesondere als Restaurationsmaterial in der Zahnheilkunde eingesetzt werden können.
Abstract:
The present invention relates to polymeric composites comprising inorganic fillers and organic, or organometallic, polymers. The filler compositions are used in the preparation of inorganic-organic polymeric composites, and, in particular, light curable composites. The composite fillers are used in dental applications, such as tooth restorations, for example, cavity fillings, adhesive compositions, veneers, crowns, bridges and teeth replacements. The inventive composition is a composite filler comprising porous inorganic particles having a diameter of 2-25 microns and a polymer occupying the pores of the porous inorganic particles, wherein the composite filler has a diameter of 2-25 microns.
Abstract:
Die vorliegende Erfindung betrifft Magnesiumoxid-Aluminiumoxid-Siliciumoxid-Glas oder -Glaskeramiken auf Basis des Hochquarzmischkristall-Systems, die in einer Zwischenstufe der Kristallisation einfach mechanisch bearbeitbar sind und nach der vollständigen Kristallisation eine hochfeste, hoch transluzente und chemisch stabile Glaskeramik darstellen. Die Gläser bzw. Keramiken sind dadurch gekennzeichnet, dass sie weiterhin Phosphor und eine Übergangsmetallkomponente aufweisen, ausgewählt unter Titan und Zirkonium oder einer Mischung aus beidem.
Abstract:
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.