Professional teeth whitening is one of the most popular cosmetic dental procedures in the world. If you want a whiter, brighter smile with visible results from the very first session, this guide will help you understand your options, prices in Romania and what to realistically expect.
What is professional teeth whitening?
Professional teeth whitening (also known as teeth whitening or bleaching) is a cosmetic procedure performed by a dentist, using hydrogen peroxide or carbamide peroxide-based substances at higher concentrations than those available over the counter. The result: teeth that are 3–8 shades whiter in a single session.
Unlike at-home kits (strips, OTC gels, abrasive toothpastes), professional whitening:
- Uses peroxide concentrations of 25–40% (compared to 3–10% in at-home kits)
- Is medically supervised, reducing the risk of gum irritation
- Delivers immediate and uniform results
- Can be activated with LED light or laser for maximum effectiveness
Types of professional teeth whitening
1. In-Office Whitening
The fastest method. The dentist applies a concentrated hydrogen peroxide gel (35–40%) to the tooth surfaces while protecting the gums with a resin barrier. The gel is activated with an LED lamp or laser to accelerate the chemical process.
Duration: 60–90 minutes (1 session) Result: 4–8 shades whiter Price in Romania: 800–2,000 lei per session
Popular brands: Philips Zoom!, Beyond, Opalescence Boost.
2. Custom Tray Whitening (Take-Home Trays)
The dentist creates custom-fitted silicone trays and provides you with a lower-concentration whitening gel (10–22% carbamide peroxide). You apply the gel at home, 30 min–2 hours per day, for 1–3 weeks.
Duration: 7–21 days Result: 3–6 shades whiter Price in Romania: 500–1,200 lei (complete set)
3. Combined Whitening (most effective)
One in-office session followed by continued treatment with trays at home. This offers the best balance between immediate results and long-term durability.
Price in Romania: 1,200–2,500 lei (complete package)
How long do whitening results last?
Professional whitening results last on average 6 months to 2 years, depending on:
- Dietary habits (coffee, tea, red wine, turmeric)
- Smoking (the most significant re-staining factor)
- Oral hygiene (brushing, flossing, regular scaling)
- Genetics (some people have more porous enamel)
Tip: A maintenance session every 6–12 months significantly extends the effect.
Who can have teeth whitening?
Professional whitening is safe for most healthy adults. It is not recommended in the following situations:
- Children under 16 (the dental pulp is larger)
- Pregnant or breastfeeding women
- People with severe dental sensitivity or active periodontal disease
- Teeth with large visible restorations (crowns and composites do not whiten)
- Untreated cavities or enamel cracks
Important: Existing restorations (fillings, crowns, veneers) do not change colour with whitening. If you have restorations in the front area, you may need to replace them after whitening to achieve a uniform colour.
Risks and side effects
Professional whitening performed correctly is safe. The most common side effects:
- Dental sensitivity (temporary, 24–72 hours) — occurs in 50–70% of patients, managed with sensitivity toothpaste and fluoride gel
- Gum irritation (mild, if the gel touches the gums) — disappears within 1–2 days
- Uneven result (if teeth have pre-existing enamel defects)
Professional whitening vs. at-home whitening: comparison
| Criterion | In-Office | Custom Trays | OTC Kit (retail) |
|---|---|---|---|
| Peroxide concentration | 25–40% | 10–22% | 3–10% |
| Result (shades) | 4–8 | 3–6 | 1–3 |
| Treatment duration | 1 hour | 1–3 weeks | 2–4 weeks |
| Medical supervision | Yes | Partial | No |
| Price | 800–2,000 lei | 500–1,200 lei | 50–200 lei |
| Irritation risk | Minimal (protection) | Low | Moderate |
Teeth whitening prices in Romania 2026
| Procedure | Average price |
|---|---|
| Zoom! in-office whitening | 1,000–1,800 lei |
| Laser whitening | 1,200–2,000 lei |
| Custom tray whitening | 500–1,200 lei |
| Combined package (in-office + trays) | 1,200–2,500 lei |
| Maintenance session | 400–800 lei |
Prices vary depending on the clinic, city and whitening brand used. Compared to Western Europe (€500–1,000), Romania offers the same procedures at prices 50–70% lower.
Post-whitening tips (first 48 hours)
- Avoid coloured foods and drinks — coffee, tea, red wine, tomato juice, curry, berries
- Do not smoke — nicotine re-stains teeth quickly
- Use sensitivity toothpaste — recommended for 1–2 weeks
- Drink water after every meal — rinses tooth surfaces
- Use a straw for coloured drinks (if you cannot avoid them entirely)
Conclusion
Professional teeth whitening is an affordable investment with immediately visible results. Choose an experienced clinic, discuss your expectations with the dentist and follow the post-whitening protocol for long-lasting results.
Want to compare teeth whitening offers from verified clinics? Request a free quote through ClickDent — you will receive replies from partner clinics within 24 hours.