System and method for manufacturing a dental prosthesis and a dental prosthesis manufactured thereby
First Claim
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1. A method for producing a dental prosthesis on a dental coping, comprising:
- receiving fabrication instructions for the dental prosthesis, the fabrication instructions being generated based on a three-dimensional virtual model of the dental prosthesis comprising a plurality of virtual model layers; and
producing the dental prosthesis on the dental coping based on the fabrication instructions by;
forming a plurality of wax layers corresponding to the plurality of virtual model layers; and
casting a plurality of prosthesis layers from the plurality of wax layers, wherein at least one wax layer of the plurality of wax layers is formed on a previously cast prosthesis layer in order to form at least one prosthesis layer of the plurality of prosthesis layers on the previously cast prosthesis layer.
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Abstract
A dental prosthesis is made by externally machining successive layers of wax, each of which is formed on a previous prosthesis layer and/or on a coping. Each wax layer is used to form a mold in situ over the previous prosthesis layer/coping, and the appropriate prosthesis material is cast or otherwise molded to conform to the wax layer by the mold.
190 Citations
15 Claims
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1. A method for producing a dental prosthesis on a dental coping, comprising:
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receiving fabrication instructions for the dental prosthesis, the fabrication instructions being generated based on a three-dimensional virtual model of the dental prosthesis comprising a plurality of virtual model layers; and producing the dental prosthesis on the dental coping based on the fabrication instructions by; forming a plurality of wax layers corresponding to the plurality of virtual model layers; and casting a plurality of prosthesis layers from the plurality of wax layers, wherein at least one wax layer of the plurality of wax layers is formed on a previously cast prosthesis layer in order to form at least one prosthesis layer of the plurality of prosthesis layers on the previously cast prosthesis layer. - View Dependent Claims (2, 3, 4, 5)
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6. A system for producing a dental prosthesis on a dental coping, comprising:
one or more processors comprising instructions that, when executed, cause the system to, receive fabrication instructions for the dental prosthesis, the fabrication instructions being based on a three-dimensional virtual model of the dental prosthesis comprising a plurality of virtual model layers, produce the dental prosthesis on the coping based on the fabrication instructions by forming a plurality of wax layers corresponding to the plurality of virtual model layers and casting a plurality of prosthesis layers from the plurality of wax layers, and form at least one wax layer of the plurality of wax layers on a previously cast prosthesis layer in order to cast at least one prosthesis layer of the plurality of prosthesis layers on the previously formed prosthesis layer. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method for producing a dental prosthesis on a dental coping, comprising:
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providing the dental coping; forming a first wax layer on the dental coping based on a first virtual model layer of a three-dimensional virtual model of the dental prosthesis; casting a first prosthesis layer from the first wax layer such that the first prosthesis layer is cast on the dental coping; forming a second wax layer on the first prosthesis layer based on a second virtual model layer of the three-dimensional virtual model of the dental prosthesis; and casting a second prosthesis layer from the second wax layer such that the second prosthesis layer is cast on the first prosthesis layer. - View Dependent Claims (13, 14, 15)
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Specification