[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

孕期牙膏含氟量应控制在1000-1450ppm之间,此浓度防龋有效且咽下微量风险极低;避免选择氟含量<500ppm的儿童牙膏,防龋效果不足以应对孕期口腔环境变化

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