Abstract:
The present invention discloses a coating for a dental crown (102) having both the aesthetics and excellent mechanical strength, which is composed of zirconia based ceramics and alumina based ceramics used as a first and second ceramic core layer (106, 108), and a porcelain based veneer (104). Also disclosed is a method of manufacturing the dental crown.
Abstract:
Dentale Teilprothese (1) mit zumindest einer Oberfläche (2) zur Ausbildung einer Kaufläche eines Seitenzahns (3), wobei die dentale Teilprothese (1) ein zusammengesetztes Material (4) aufweist und das zusammengesetzte Material (4) zumindest ein organisches Bindemittel (5), vorzugsweise Methacrylat, und, vorzugsweise anorganische, Feststoffpartikel (6) als Füllstoff enthält, wobei zumindest die Oberfläche (2) zur Ausbildung der Kaufläche, vorzugsweise die gesamte nach außen weisende Oberfläche der dentalen Teilprothese (1), zumindest bereichsweise, vorzugsweise vollständig, von einer Schicht (7), welche miteinander verschmolzene Feststoffpartikel (6) aufweist, gebildet ist.
Abstract:
Provided are methods of improving the wear resistance and aesthetic properties of dental articles, as well as dental articles having an abrasion resistant ceramic/polymer hybrid coating thereon. The method for coating a dental article (20) comprises: providing a body comprising a mental substrate (30); priming at least a portion of a surface of the body; depositing a ceramic material on at least a portion of a surface of the body, wherein said depositing forms a ceramic layer (34) bonded directly to the surface: and depositing at least one hardenable composition comprising a polymerizable component on at least a portion of the ceramic layer, wherein depositing at least one hardenable composition forms a polymeric layer (36).
Abstract:
Advanced material is preferably used for the manufacturing of dental crowns which may be used to restore decayed or to protect other compromised tooth structure. The dental crowns are preferably preformed or prefabricated with a strengthener by way of either (1 ) a metal crown base (for example, a stainless steel crown base) having an advanced material (which may include fillers) applied coating or layer; or (2) an advanced material with a strengthener in the form of a strip and/or fillers. In either of the foregoing, or independently, the advanced material may be formed or applied by flame spray, liquid dispersion, powder coating, compression molding, vacuum forming, injection molding, pressure forming, thermoforming, or additive manufacturing. The later in particular pertains to additive manufacturing of laser sintered PEEK (or three- dimensional printing of same).
Abstract:
A dental crown consisting essentially of stabilized zirconia. The dental crown is particularly suited for pedodontic and veterinary applications. The zirconia crown may be formed by one of several manufacturing processes. The formed crown exterior is polished and fine polished to produce an aesthetic outer surface mimicking a natural tooth. Also disclosed is a method for providing a dental crown to a natural tooth and a kit of prefabricated crowns.
Abstract:
A coating for a biomedical device is disclosed, including a metal layer and/or a ceramic layer, such as a layer of titanium (35) and a layer of titanium-nitride (33). The coating can form a coping (30) for a crown (22) for a tooth (20), the crown including a porcelain layer bonded to the titanium-nitride (33) layer. Methods for making and using a biomedical device are also disclosed, including vapor deposition (100) of metal and/or ceramic layers, such as titanium (Ti) and titanium-nitride (TiN) layers. In one embodiment, the method includes forming a titanium (Ti) vapor that solidifies to form a titanium (Ti) layer; forming a titanium-nitride (TiN) vapor that coats the titanium (Ti) layer with a titanium-nitride (TiN) layer; and forming a porcelain layer on the titanium-nitride (TiN) layer. The porcelain can be sintered to form a dental crown or other device.
Abstract:
A dental prosthetic device, such as a crown or a bridge, which includes a ceramic core (16) that is effectively joined by "cementing" to the stump in a tooth preparation, and a polyceramic outer jacket (22) which is effectively joined by "bonding" to the core.
Abstract:
To prevent the formation of fissures in ceramic restoration components (34) and the widening of any existing fissures, it is proposed that surface areas of the tooth restoration component subjected to particular tensile stress should be provided with a protective layer (52) which is intimately bonded to the ceramic material and preferably applies a tensile stress to it. The protective layer (52) is fully prepared before incorporation of the tooth restoration component and its free surface is complementary to the preparation surface (12) of a tooth stump (10).
Abstract:
The invention relates to a dental prosthesis comprising a support shell (2) intended to cover a stump (1) and an external finish coating (3) covering the support shell (2), the prosthesis being characterized in that the support shell (2) is comprised of a composite material and in that the coating (3) is comprised of at least one layer having at least one component of the same nature as at least one component of the composite material matrix of the shell (2). The invention also relates to a piece of matrix fabric preimpregnated before cross-linking for the manufacture of the shell (2), as well as to a method and a machine for manufacturing the dental prothesis according to the invention.
Abstract:
Die Erfindung betrifft eine Zahnersatz-Vorrichtung, wobei die Zahnersatz-Vorrichtung ein Interface und eine Schutzschicht umfasst. Die Erfindung betrifft darüber hinaus ein Verfahren zur Herstellung einer solchen Zahnersatz-Vorrichtung, sowie eine Zusammensetzung zur Verwendung als Schutzschicht in einer solchen Zahnersatz-Vorrichtung.