| 摘要 |
An orthodontic appliance comprising a generally u-shape tooth positioning shell (6,8) adapted for mounting on teeth of the upper or lower arch (2,4) of a patient. The shell (6,8) has a geometry shaped to receive and resiliently apply pressure to one or more teeth to reposition them and at least one additional formation (10,12) on or in the positioning shell adapted to perform a function other than repositioning teeth.
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