[KongchangAI]
Unverified82% confidenceTradeoffTime unknown

训练器软硬度与训练阶段是权衡:软款佩戴舒适、依从性高但矫正力弱见效慢;硬款矫正力强但初期不适、易被孩子放弃,实际效果取决于每日佩戴时长而非单纯硬度

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82%
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