摘要:
To provide a multilayer resin material for dental milling and machining, comprising an inorganic filler in a content of 40 % by weight or more and a plurality of layers different in transparency and color tone from each other, wherein the thickness of the uppermost layer (U) and the thickness of the lowermost layer (L) are each 1 mm or more, the contrast ratios (uppermost layer: C U , lowermost layer: C L ) as indices for the transparency of the uppermost layer (U) and the transparency of the lowermost layer (L) satisfy the following relations: 0.30 ‰¤ C U ‰¤ 0.60 0.55 ‰¤ C L ‰¤ 0.90 C U
摘要:
Custom dental prosthesis or implants each individually designed and manufactured to replace nonfunctional natural teeth positioned in a jawbone of a specific pre-identified patient are provided. An example dental prosthesis/implant includes a dental implant body having a prosthesis interface formed therein to receive an occlusally-facing dental prosthesis component. The prosthesis interface has a custom three-dimensional surface shape positioned and formed to create a form locking fit with respect to the occlusally-facing dental prosthesis component when positioned thereon.
摘要:
The invention relates to a kit of parts comprising part A and part B, part A comprising a polymerizable component having an acid group in the molecule, an initiator, part B comprising an activator, and a film former. The invention also relates to a composition obtainable by mixing the components contained in the kit of parts and to a process for producing the kit of parts comprising the steps of bringing the components contained in part B of the kit in contact with a surface, drying the surface to form a film.
摘要:
An apparatus and method are provided for tooth treatment, wherein in base (40) is mounted in the mouth of a patient and a tooth treatment tool (51) connected to said base such that said connection allows for supported movement of the tool in relation to the tooth. In a preferred embodiment, the base (40) has an extending support member (41) onto which a pantograph (48) is adjustably engaged, which pantograph holds a dental tool (51) and guiding means (46, 53) for guiding the movement of the tool to within a predetermined cavities of varying shape, for insertion of pre-fabricated fillings, and alleviates dentists from much of the physical stress experienced in common dental work.
摘要:
A dental crown (10) is disclosed which comprises a titanium metal core (12) which is suitable for fixing over a tooth stud (not shown) and a layer of mesh (14) which is fixed to the core (12) by welding or similar means. An outer layer of fused porcelain (16) forms an outer body functional as a tooth and is mechanically bonded to the mesh (14). The mechanical bonding provides a very strong bond between the porcelain (16) and the mesh (14) which allows the porcelain (16) to expand and contract relative to the metal core (12) enabling the porcelain outer body (16) to be made of uneven thickness without causing cracking of the porcelain. The specification also discloses a method of mounting the crown to a tooth stud using a compressible gold layer interposed between the crown and the tooth stud to improve the margin fit of the crown.
摘要:
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).
摘要:
A metal composite and method for filling a dental cavity independent of cavity size. The dental metal composite comprises high-fusing temperature particles, low-fusing temperature particles, and a wax binder, and is inserted into the cavity to replicate the cavity, removed for heat treatment, densified, and reinserted to complete the filling operation.
摘要:
PCT No. PCT/NO91/00148 Sec. 371 Date May 26, 1993 Sec. 102(e) Date May 26, 1993 PCT Filed Nov. 26, 1991 PCT Pub. No. WO92/09241 PCT Pub. Date Jun. 11, 1992.A method is disclosed for adapting and implanting at least one dental porcelain chip (9) in a cavity (2, 3, 4). The cavity and each porcelain chip (9) are subjected to necessary etching, silanization, and application of a binder before implantation occurs. At first, a moulding (10a) is made of the cavity (2, 3, 4), whereupon the moulding (10a) is fastened to the porcelain chip (9). Then the porcelain chip is contour worked to substantially the same shape as the moulding (10a), and the formed chip (9c) is placed in the cavity and fastened by means of a binder to the original tooth (1).