摘要:
Poröser silikat-keramischer Körper, gegebenenfalls mit unterschiedlicher Farbgebung, mit einer ersten Dichte, der zu einem silikat-keramischen Körper mit einer zweiten Dichte gesintert werden kann, wobei das Verhältnis der ersten Dichte zur zweiten Dichte 2/5 bis 98/100 und die Drei-Punkt-Biegefestigkeit des porösen silikat-keramischen Körpers mit einer ersten Dichte, gemessen nach ISO 6872, 25 bis 180 MPa beträgt.
摘要:
A dental construct comprises a glass ceramic material comprising: Molar % SiO 2 62-75 Na 2 O 5.5-6.5 K 2 O 5.0-6.0 CaO 11.5-12.5 CaF 2 9.0-11.0 ZrO 2
摘要翻译:牙科构造物包括玻璃陶瓷材料,其包含:摩尔%SiO 2 62-75 Na 2 O 5.5-6.5 K 2 O 5.0-6.0 CaO 11.5-12.5 CaF 2 9.0-11.0 ZrO 2 <3.0
摘要:
A process for making a dental restoration includes forming an image which represents a natural oral cavity characteristic. The image may be formed on a computer by an artist or by capturing a photograph of an oral cavity. The computer-based image may be modified with a computer-aided software program. Thereafter, the image is printed as a decal and attached to the dental restoration base. The decal and the dental restoration base are conditioned by a high intensity light or by being fired together in an oven in order to create a finished dental restoration having the desired oral cavity color and characteristics.
摘要:
The present invention relates generally dental ceramics. In particular invention relates to a high strength, high reliability, dental glass-ceramic that contains uniform, ellipsoidal reinforcing leucite crystals.
摘要:
A method of producing a dental product is disclosed. The method comprised the steps of providing a pre-sintered blank made from a green body of ceramic material, performing a machining operation on the blank and subsequently sintering the blank to its final density in a sintering operation performed at a temperature from 1300°C to 1650°C. The pre-sintered blank that is provided has a strength of 53 - 107 MPa.
摘要:
A method of making a facing for a dental restoration. The method comprises the step of providing a facing precursor from which the facing is obtainable, and wherein the facing precursor is comprised of an open-celled material. The method provides for efficient manufacturing of dental restorations with optimized characteristics.
摘要:
Es wird ein Verfahren zur Herstellung eines Zahnersatzteils (3) offenbart, wobei das Zahnersatzteil (3) mit einer inneren Oberfläche (5) mittels eines Klebstoffs (9) an einem weiteren Zahnersatzteil 2 befestigt wird, wobei für den Klebstoff (9) ein sich zwischen einer inneren Oberfläche (5) des Zahner- satzteils und dem weiteren Zahnersatzteil (2) befindlicher Spalt (8) vorgesehen wird, wobei die innere Oberfläche (5) des Zahnersatzteils unter Berücksichtigung der optischen Eigen- schaften des Klebstoffs (9) konstruiert wird. Darüber hinaus wird ein nach den vorgenannten Maßstäben hergestelltes Zahnersatzteil (3) und ein Rohling (41) zum Her- stellen eines solchen Zahnersatzteils (3) und des weiteren Zahnersatzteils (2) offenbart.
摘要:
A system for production of a dental crown (23, 24) includes identification equipment (2), modeling equipment (9), ordering equipment (6), and an automated production arrangement (16). The latter, as a function of one or more first information items, is arranged to effect production, by means of pressing or pressure-casting, of an integrated dental crown which is made up of two layers. The first layer comprises or consists of porcelain material, and the second layer consists of aluminum oxide, zirconium oxide, etc. The second layer forms a cap, via which the dental crown can be applied to a tooth stump (28) of a patient (1). The invention also relates to a dental replacement component consisting of the dental crown. It relates also to an arrangement used for a preliminary stage in production of a dental crown, which arrangement is characterized by a cylinder-shaped unit (puck) which is made of porcelain material and can be pressed against the cap under vacuum and at high pressure in order to form the first layer. The invention permits accelerated and efficient production of individual dental crowns.
摘要:
The invention relates to a dental moulded part which can be produced from ceramic particles by firing the green product obtained therefrom. The structure of said moulded part contains ceramic fibres and/or nanocrystalline particles. The invention also relates to a method for producing a ceramic moulded part for dental use. According to the inventive method, the ceramic particles dispersed in a liquid dispersion agent are electrophoretically separated from the dispersion on an electrode corresponding to the form of a dental base body. The ceramic particles are made partially from ceramic fibres and/or nanocrystalline particles.
摘要:
The present invention relates to a method for making artificial tooth bridges consisting of a ceramic densily sintered high strength individual core (B) veneered with porcelain (A) using powder metallurgical methods. According to the method the individual densely sintered bridge parts are joined together to a bridge core with glass, which in molten condition wets the ceramic core material. The glass therefore finds its way into the gap between the bridge parts and reacts with the ceramics so that it during cooling forms a strong joint between the individual densely sintered ceramic bridge parts.