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US 7,175,435 B2Granted
Method, arrangement and program for a prosthetic installation
AssigneeNobel Biocare AB
InventorsMatts Andersson, Izidor Brajnovic
Life of this patent
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AssigneeNobel Biocare AB
InventorsMatts Andersson, Izidor Brajnovic
Estimating the term…
In a method and arrangement for allocating prosthetic installation work between at least three parties (A, B, C) a dental situation and fixture application are simulated on a computer screen by the first party. The second party produces first components in connection with the prosthetic installation with the aid of a recording and said simulation. Second components are supplied by the third party (C) and the prosthetic installation is assembled and fitted by the first party by means of said first and second components. The recording includes first and second readings of a loose prosthesis and a portion supporting the prosthetic insallation. The simulation includes collation of representations of the readings on a computer screen. Simulated fixture applications are constructed and a model is produced by one of said parties, or a fourth party. An assembly template guides hole-forming members in an actual substrate in directions which correspond to the directions of the fixtures. A dental bridge is provided with attachment holes which connect to the holes formed in the substrate. Fixtures are applied in said formed holes by the first party and the dental bridge is secured in or on said fixtures. The invention also relates to a computer program in connection with the above.
A method for allocating prosthetic installation work between at least three parties where a dental situation and fixture applications therein are simulated on a computer screen by the first party, first components in connection with the prosthetic installation are produced by the second party with the aid of a recording and said simulation, second components are supplied by the third party, and the prosthetic installation is assembled and fitted by the first party by means of said first and second components, characterized in that the recording includes a first reading of an impression or prosthesis and a second reading of a portion supporting the prosthetic installation, in that the simulation includes collation of images or representations on the computer screen, which images or representations result from the first and second readings and on the basis of which the simulated fixture applications are constructed, in that the simulated fixture applications include chosen positionings in relation to said supporting portion, in that a model, e.g. of plastic, is produced, preferably by a stereolithopaphy method, by one of said parties, or a fourth party, in that the first components include an assembly template which can be applied to said substrate and is produced by means of the model and is intended for hole-forming members which are guided by the assembly template in the substrate in directions which correspond to the directions of the chosen positionings, in that the first components include a unit forming part of the installation, e.g. a dental bridge, which is provided with attachment holes which connect to the holes formed in the substrate, in that the second components include the fixtures which are applied in said formed holes by the first party, and in that the second components also include securing members for securing the unit in said applied fixtures.
An arrangement for allocating prosthetic installation work between at least three parties, and comprising a computer which is located with the first party and which is intended to simulate, on its screen, a dental situation and fixture applications therein, a first production unit which is located with the second party and which is intended to permit production of first components intended for the prosthetic installation with the aid of a recording and said simulation, a second production or supply unit which is located with the third party and which is used to produce second components, and first equipment which is located with the first party and is intended to allow the prosthetic installation to be constructed and fitted on the patient with the aid of the first and second components, characterized in that the recording includes a first reading of an impression or prosthesis and a second reading of a portion supporting the prosthetic installation, in that the computer is intended, in connection with the simulation, to permit collation of images or representations on the computer screen, which images or representations result from the first and second readings, and to indicate on these the simulated fixture applications which include chosen positionings in relation to said supporting portion, in that second equipment, preferably a stereolithography appliance, which is located with one of the parties, or with a fourth party, is intended for production of a model, e.g. of plastic, in that the first production apparatus is provided for production of an assembly template which has been constructed by means of the model and which has guide elements for hole-forming members which can be guided by the assembly template in order to assume directions which correspond to the directions of the chosen positionings, in that the first production apparatus is also provided for production of a structural unit, e.g. a dental bridge, which forms part of the installation and which is provided with attachment holes which connect to the holes formed in the substrate, in that the second production or supply unit produces or supplies the fixtures intended for said formed holes, and also securing members for securing the structural unit in the fixtures which are applied in the substrate.
Dependencies are inferred from the claim text.