[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

美白效果与安全性存在权衡:过氧化物浓度越高美白越明显,但牙齿敏感和牙龈刺激风险同步上升;日常维护型选0.5%-1.5%低浓度长期使用,短期集中美白再考虑更高浓度但需控制在两周内

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