摘要:
Disclosed is a method of forming a uniform coating onto a tooth surface, which method includes: forming droplets by spraying an orally acceptable coating material through a spray nozzle, wherein the droplets have a volume-averaged droplet size of about 1 µm to about 100 µm, wherein a spray including the droplets travels from a tip of the spray nozzle towards the tooth surface at a spray rate of less than about 10 milliliters/minute and wherein the droplets include a film-forming polymer, a therapeutic agent and/or a cosmetic agent; and depositing the droplets onto the tooth surface to thereby form a uniform coating.
摘要:
The invention relates to glass ceramics based on the lithium metasilicate system (Li 2 O SiO 2 (Li 2 SiO 3 ) ), which are mechanically processible in a simple manner in an intermediate stage of the crystallization and, after complete crystallization, represent a high- strength, highly translucent and chemically stable glass ceramic.
摘要翻译:本发明涉及基于偏硅酸锂体系(Li 2 O 3 SiO 2(Li 2 SiO 3))的玻璃陶瓷,其在结晶的中间阶段以简单的方式机械加工,并且在完全结晶之后代表高强度,高度半透明和 化学稳定的玻璃陶瓷。
摘要:
Disclosed herein are low viscosity and low stress dental compositions comprising at least one low stress polymerizable resin and at least one filler. The dental compositions described herein have high depth of cure and self-leveling characteristics and are capable of bulk application.
摘要:
The present invention relates to a method of producing a (shaped) ceramic or glass-ceramic article, involving the steps of: (a) providing a powder or a powder mixture comprising ceramic or glass-ceramic material, (b) depositing a layer of said powder or powder mixture on a surface, (d) heating at least one region of said layer by means of an energy beam or a plurality of energy beams to a maximum temperature such that at least a part of said ceramic or glass-ceramic material in said at least one region is melted and (e) cooling said at least one region of said layer so that at least part of the material melted in step (d) is solidified, such that the layer is joined with said surface in said at least one region. The invention also relates to ceramic or glass-ceramic articles and their use.
摘要:
Die vorliegende Erfindung betrifft einen vollkeramischen Zahnersatz, bei dem ein poröses keramisches Gerüstmaterial mit einem Glas infiltriert wird und eine Löslichkeit von 2 nach DIN EN ISO 6872 besitzt. Gegenstand der Erfindung ist auch die Verwendung von niobhaltigem Glas mit einem Nb 2 O 5 -Gehalt von mehr als 0,1 Gew. % als Infiltrationsglas für vollkeramische Dentalmassen.
摘要翻译:本发明涉及一种全陶瓷牙修复体,其中,多孔陶瓷支架材料渗透用玻璃和> 2 SUP>具有的溶解度<1100克/ CM 使用含铌的玻璃的2 SUB> 0 5 SUB>超过0.1%(重量)含量作为浸润玻璃全瓷牙科用组合物。
摘要:
The invention relates to a method for producing a ceramic, a ceramic produced according to said method and to the use thereof. According to the invention, a green body, which consists of at least two different powder mixtures that are compacted to form a moulded body, is initially produced and subsequently sintered. Said powder mixtures respectively contain a ceramic powder and a coloured metal compound and/or a coloured pigment. The two powder mixtures are different in their composition from the coloured metal compound and/or the coloured pigment. The ceramics are shaped prior to sintering and/or during the intermediate step, during which sintering is interrupted and then continued after shaping. The inventive ceramic can be used as colour gradiated dental ceramics or as dental ceramics having a coloured gradient.
摘要:
Lithium disilicate based glass-ceramics contain high strength ceramic components for use in the manufacture of dental products. The glass-ceramics have good pressability, i.e., the ability to be formed into dental products by heat-pressing using commercially available equipment. The strength of the dental articles is increased with the inclusion of the high strength ceramic components.
摘要:
Die Erfindung umfaßt eine Glaskeramik mit einer kontinuierlichen Glasphase und einer Kristallphase aus tetragonalem Leucit, wobei die Glaskeramik eine rißfreie Glasphase und eine in der Glasphase im wesentlichen homogen verteilte Kristallphase von Leucitkristallen aufweist. Die Kristallphase besitzt eine Korngrößenverteilung mit ca. 5 % bis ca. 70 % einer ersten Gruppe von Leucitkristallen mit Korngrößen 1 µm. Der Anteil an Li2O in der Glaskeramik liegt vorzugsweise unter 0,5 Gew.-%. Vorzugsweise ist nicht nur die Glasphase, sondern auch die Kristallphase im wesentlichen frei von Rissen. Die entsprechenden Glaskeramiken sind in besonderer Weise für die Verwendung im Dentalbereich geeignet, insbesondere als sogenannte Verblendkeramiken.
摘要:
A stable, phase-pure magnesium-substituted crystalline hydroxyapatite containing from about 2.0 to about 29 wt% magnesium, wherein at least 75 wt% of the magnesium content is substituted for calcium ions in the hydroxyapatite lattice structure.