| 摘要 |
<p>A dental bridge can be manufactured with the aid of a model (2) which includes preparations (8, 9, 10). The contours of each preparation can be read off by a reading unit. A computer unit traces the said readings. With the aid of a computer program, the computer processes the read-off information in cooperation with an operator so that a construction based on the tracing is obtained. The position of each preparation in the construction is determined by an apparatus which is functionally separate from the scanning unit. This apparatus generates information items which can be related to the positions of the preparations. These information items are run concurrently with the readings from the scanner in the computer, which in this way can indicate the correct mutual positions of the preparations in the construction.</p> |
