5 Teeth Whitening Myths — Debunked
Does whitening damage enamel? Are strips safe? Does it last forever? A dentist debunks the biggest whitening myths.
Myth 1: 'Whitening damages enamel'
False. Professional peroxide-based whitening at correct dose does NOT weaken or thin enamel. Decades of research confirm this.
Myth 2: 'Shop-bought strips are just as good'
No — they use lower concentrations, no gum protection, and can cause uneven results or sensitivity. Professional supervision matters.
Myth 3: 'Whitening lasts forever'
No — 12–24 months is typical, longer with maintenance touch-ups and reduced staining habits (coffee/tea/wine/tobacco).
Myth 4: 'Whitening works on crowns and veneers'
No — only natural tooth enamel responds to peroxide. Crowns and veneers keep their existing shade.
Myth 5: 'Sensitivity means damage'
No — temporary cold sensitivity is normal and reversible. A desensitising toothpaste solves it within days.
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