Teeth whitening is one of the most requested aesthetic procedures. Results and safety vary by method.
In-clinic whitening
- High-concentration gel (25–40% hydrogen peroxide)
- Activated with light or laser
- Visible result in 1–2 visits
- Performed under dental supervision — gum and enamel protection
- Lasts 1–2 years (depending on hygiene and diet)
At-home whitening — professional method
- Custom trays from the dentist + gel
- Lower concentration (6–22% carbamide peroxide)
- 30 min – 2 hours/day, 1–2 weeks
- More gradual, but supervised
At-home popular methods
| Method | Effect | Risk |
|---|---|---|
| Whitening toothpaste | Minimal | Low |
| OTC strips | Mild | Gum sensitivity |
| Charcoal, baking soda | Surface stains | Enamel abrasion |
| Lemon, vinegar | None | Severe enamel damage |
Acidic and abrasive methods damage enamel irreversibly.
Rules after whitening
- 48 hours — avoid pigmented drinks (coffee, tea, red wine)
- No smoking for at least 48 hours
- Fluoride toothpaste to reduce sensitivity
- Professional hygiene every 6–12 months
What matters before whitening
Professional tartar removal is required first — the surface under plaque won't whiten evenly. Active gingivitis or open caries must be treated first.
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