| 摘要 |
An orthodontic retraction arch (10) includes an arch section (12) and two distal spring sections (14). Distal ends of spring sections (14) have eyelets (16) for ligation to orthodontic implants (18). An orthodontic retraction spring (20) has first and second spring segments (22, 24) and structures to engage an archwire (a crimpable archwire slot 28) and an orthodontic implant 18 (an eyelet 26). Retraction arch (10) and retraction spring (20) may also include recumbant loops (15, 23).
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