[KongchangAI]
Unverified85% confidenceSolutionTime unknown

解决牙齿美白诉求的标准路径:先判断着色类型—外源性(咖啡茶烟渍)用美白牙膏+定期洁牙即可;内源性(牙齿本色黄/四环素牙)需诊室美白或修复;美白牙膏只是维护和轻度改善工具,非治疗手段

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85%
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Long-term
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