Dental articles using nanocrystalline materials and methods of manufacture

Method of forming dental articles by using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders comprised of nanoparticulate crystallites are used to manufacture dental articles. The ceramic powder...

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Bibliographische Detailangaben
Hauptverfasser:	Brodkin Dmitri, Gamarnik Moisey Y
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE ARTIFICIAL STONE CASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F CONCRETE DENTISTRY HUMAN NECESSITIES HYGIENE INORGANIC CHEMISTRY LIME, MAGNESIA MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES MEDICAL OR VETERINARY SCIENCE METALLURGY NANOTECHNOLOGY PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SLAG SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING TREATMENT OF NATURAL STONE WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	Method of forming dental articles by using relatively low sintering temperatures to achieve high density dental articles exhibiting strengths equal to and greater than about 700 MPa. Ceramic powders comprised of nanoparticulate crystallites are used to manufacture dental articles. The ceramic powders may include sintering agents, binders and other similar additives to aid in the processing of the ceramic powder into a dental article. The ceramic powders may be processed into dental articles using various methods including, but not limited to, injection molding, gel-casting, slip casting, or electroforming, hand, cad/camming and other various rapid prototyping methods. The ceramic powder may be formed into a suspension, pellet, feedstock material or a pre-sintered blank prior to forming into the dental article.