| 摘要 |
An orthodontic anchorage screw (1, 1', 1'') with a barrel provided with a thread (8) and formed onto a screw head (2) shall guarantee a particularly high and lasting strength after having been put in place in the jaw bone. For this purpose, according to the invention, the thread (8) is designed, viewed along the longitudinal axis of the threaded barrel (4), with at least one non-constant thread parameter.
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