| 摘要 |
A device for detaching a crown from a tooth, especially a cast crown, has a pin (4) which is provided with a handle (9) and has a blade (5) on its front end, the blade having hard and sharp edges (6) on at least two mutually opposite sides. The blade (5) may be bent approximately to the shape of an s at least in the front region as seen in cross-section. <IMAGE>
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