Aesthetics
A white smile is one of the most sought-after aesthetic goals. Teeth whitening is a safe and effective way to remove stains and restore a brighter colour to your teeth. In this guide I honestly explain the types of whitening, how it works, how long the effect lasts and how to maintain it — and when whitening is not suitable.
1. In-practice whitening (professional)
The fastest and most powerful option. The dentist applies a professional whitening gel and activates it with a UV/LED light. The result is visible immediately after one visit (45–60 min). The most controlled and safest method.
2. At-home whitening (with custom trays)
The dentist makes individual trays from an impression of your teeth and prescribes a gel. You carry out the whitening at home over 1–2 weeks. Slower, but effective and comfortable.
3. Combined
Start in the practice (a quick boost) + maintenance at home. The best long-term result.
How does in-practice whitening work?
- Examination of teeth and gums (checking suitability)
- Cleaning of the teeth (removing deposits)
- Protection of the gums
- Application of the whitening gel + activation with light
- After 2–3 cycles — a visible result
How long does the effect last?
It depends on your habits: from 6 months to 2–3 years. Coffee, tea, red wine and smoking speed up staining. With good care and occasional maintenance, the smile stays white for longer.
How to keep a white smile?
- Limit coffee, tea and red wine (or drink through a straw)
- Do not smoke
- Regular brushing + dental floss
- Professional cleaning 1–2× a year
- Occasional maintenance whitening at home (trays)
For whom is whitening NOT suitable?
- Patients with untreated caries or gum inflammation (treatment first)
- Pregnant and breastfeeding women (as a precaution)
- With extensive fillings/crowns on the front teeth (these do not whiten — a difference in colour)
- With very sensitive teeth (consultation first)
Does whitening damage the teeth?
Professional whitening at the dentist is safe — controlled, with protection of the gums. Occasional temporary sensitivity is normal and passes within a few days. Home "miracles" from the internet (baking soda, lemon, activated charcoal), however, can damage the enamel — we advise against them.
Frequently asked questions
How many shades lighter? Usually 2–8 shades, depending on the starting condition.
Does it hurt? No. Only temporary sensitivity is possible.
Do fillings and crowns also whiten? No — artificial materials do not whiten. If they are in visible areas, arrange a plan with your dentist.
How much does it cost? You will receive the price at the consultation, depending on the method.