Method for manufacturing a dental prosthesis
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United States of America Patent
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Nov 30, 1993
Grant Date -
N/A
app pub date -
Mar 31, 1993
filing date -
Apr 6, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for manufacturing a dental prosthesis, wherein the shape of the prepared part of the teeth in question is established by scanning at least a part of the teeth, or a replica thereof, by means of a three-dimensional scanner. In order to be able to determine the desired shape of the prosthesis, it is not only necessary to know the shape of the part of the teeth in question, but also the circumferential edge of the preparation, i.e. the part of the teeth that has been prepared for receiving the dental prosthesis. The preparation line is made visible for the scanner by providing the teeth at one side of this preparation line with a coating which the scanner is capable of recognizing.
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