Unverified85% confidenceDecision RuleTime unknown

同一产品线常按月龄分段（如0-2岁无氟可吞咽、3-6岁低氟训练型、6岁以上含氟），选购必须匹配孩子实际月龄，混用会导致氟摄入不当或活性成分不适配

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儿童牙龈膏category

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Unverified3岁以下幼儿选含氟量500ppm以下的牙膏，3-6岁选500-1000ppm，6岁以上可用1000-1450ppm成人级含氟量，含氟量需与年龄段严格匹配79% similar Unverified矫正期牙膏选购标准路径：先按年龄定含氟浓度（成人1450ppm/6-12岁1000ppm/6岁以下≤500ppm）→ 选RDA<70低磨损 → 有敏感则加脱敏成分 → 避开SLS等刺激剂 → 儿童再考虑口味接受度78% similar

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