摘要:
The method described in this disclosure permits the production of dental replacements, such as inlays, onlays, and crowns, at high accuracy of fit and low cost in a single session of the patient's at the dentist's. For this purpose, a material that hardens is used for making a temporary inlay which provides an impression of the prepared dental cavity. After hardening, this material is removed from the tooth. In a first processing run, a first sensor (7a) does a preliminary scan of the temporary inlay (4) and a first processing tool (30a) is used for preliminary processing of the substrate mass (6). In a second processing run a second sensor (7b) and a second processing tool (30b) are used for a fine scan and fine processing. For this purpose the sensors (7a, 7b) and the processing tools (30a, 30b) are all arranged on a single linear stage (13). The temporary inlay (4) and the substrate mass (6) are attached to holder units (3, 5 ) of a rotation-synchronizer system (10) which in turn is arranged on a slide and elevator system (11, 12).
摘要:
The present invention relates to a multi-colored shaped body having layers arranged on top of one another for producing dental restorations, a process for its production and its use for the manufacture of dental restorations.
摘要:
The present invention relates to a multi-colored shaped body having layers arranged on top of one another for producing dental restorations, a process for its production and its use for the manufacture of dental restorations.
摘要:
Polymerizable materials which contain (1) 1 to 80 wt.-% of at least one polysiloxane, (2) 0.1 to 5 wt.-% of one or more initiators for radical polymerization, (3) 0 to 60 wt.-% of radically polymerizable monomer and (4) 1 to 50 wt.-% of one or more radically polymerizable monomers which carry at least phosphonic acid group, sulphonic acid group and/or mono- or dihydrogen phosphoric acid ester group, the polysiloxane (1), the monomer (3) or both being substituted by fluorine. The materials are suitable in particular for the coating of natural or artificial teeth.
摘要:
Radically polymerizable macrocyclic polyethers or macrocyclic heteroanalogous polyethers, preferably crown ethers, heteroanalogous crown ethers and cryptands for use in dental materials is disclosed.
摘要:
Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.
摘要:
The invention relates to an adhesion-promoter composition for the adhesive joining of metallic or ceramic dental materials to radically curing dental materials, wherein the adhesion-promoter composition contains an alkoxysilane monomer (i), a phosphoric acid ester monomer (ii), a sulphur-containing monomer (iii) and an organic solvent (iv).
摘要:
The invention relates to compositions based on ZrO2, and single- and multi-colored blanks made from oxide ceramics, and a process for their preparation, in which oxide ceramic powder is coated with a coloring substance, the coated powders are preferably graded and at least one colored powder is filled into a compression mould, the colored powder or powders are compressed to produce a shaped body, and the compressed shaped body is sintered to produce a blank, and to the use of these blanks for the preparation of dental restorations.
摘要:
A material contains at least a polymerizable N,O-functionalized acrylic acid hydroxyamide of the Formula (I) in which A is an n+m-valent linear or branched aliphatic C1 to C50 radical, in which the carbon chain can be interrupted by O, S, —CO—O—, CO—NH, O—CO—NH or NH—CO—NH, an n+m-valent aromatic C6 to C18 radical or an n+m-valent cycloaliphatic or heterocyclic C3 to C18 radical, wherein the radicals can carry one or more substituents, Y is not present, or is O, S, an ester, amide or urethane group, R1 is hydrogen, an aliphatic C1 to C20 alkyl or C3 to C8 cycloalkyl radical which can carry one or more substituents, R2 is H or a C1 to C10 alkyl radical, R3 is not present or is a C1 to C16 alkylene radical which can be interrupted by O, HG is not present, is —COOH, —P═O(OH)2; —P═O(OH)(OR4); —O—P═O(OH)2, —SO2OH or —O—P═O(OH)(OR4), R4 is a C1 to C15 alkyl radical, phenyl or benzyl radical and n is a number from 1 to 5 and m a number from 0 to 3.
摘要:
The invention relates to a glass for dental applications which can be used as a glazing material of dental restorations and resists high temperatures, and thus does not tend to flow.