Unverified85% confidenceDecision RuleTime unknown
3岁以下应选家长辅助型(细长杆便于家长握持+安全护圈防止插入过深),3岁以上练习自主刷牙可选粗胖防滑握柄(直径≥2.5cm适配儿童抓握力)
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85%
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Long-term
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