发明名称 |
DEVICE FOR MEASUREMENT OF THE DISPLACEMENT OF A TOOTH |
摘要 |
The present invention relates to a device to make possible measurement of the movability and displacement of a tooth and/or teeth. The invention utilizes a source, generating an electromechanical propagation, for instance laser beams or the like while the tooth is held at a fixed position in relation to the source and to means, registrating the reflections of the source in the tooth.
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申请公布号 |
US3875420(A) |
申请公布日期 |
1975.04.01 |
申请号 |
US19730400166 |
申请日期 |
1973.09.24 |
申请人 |
SAID BJELKHAGEN AND SAID ABRAMSON TO SAID RYDEN |
发明人 |
RYDEN, HANS;BJELKHAGEN, HANS INGMAR;ABRAMSON, NILS H. L. |
分类号 |
G01B11/00;A61C7/00;A61C19/04;(IPC1-7):G02F1/28 |
主分类号 |
G01B11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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