该第二构造可以使其阻碍正牙孔圈(12)相对于正牙植入物(16)的旋转。

The second configuration may be such that it hinders rotation of the orthodontic eyelet (12) relative to the orthodontic implant (16).

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一种正牙孔圈(12)包括配置成用于耦合至正牙植入物(16)上的接合部分(20)。

An orthodontic eyelet (12) includes an engaging portion (20) configured for coupling onto an orthodontic implant (16).

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接合部分（20）连接至可伸缩部分（19），并且 配置成用于耦合至正牙植入物（44）。

The engaging portion (20) is attached to the telescopable portion (19) and is configured for coupling to an orthodontic implant (44).

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