Teeth Whitening in Türkiye

How whitening works

Tooth colour comes mostly from dentine, the layer beneath the enamel, and from pigment molecules that have accumulated within the tooth over years. A peroxide gel diffuses through the enamel and breaks those pigment molecules into smaller, less visibly coloured fragments. The tooth structure itself is not removed or thinned — this is a chemical change to pigment, not an abrasive process.

That distinction explains why whitening toothpastes achieve so little. They contain mild abrasives that scrub surface stains from coffee and tobacco, which helps, but they cannot reach pigment inside the tooth. Only peroxide can, and at the concentrations that make a real difference it belongs under professional supervision.

In-clinic, take-home, or both

In-clinic whitening uses a high-concentration gel applied after the gums have been isolated with a protective barrier, in two to three cycles across a single appointment. The advantage is speed and control — you see a substantial change the same day, and the soft tissues are protected throughout.

Take-home whitening uses custom-made trays and a lower-concentration gel worn for a set period each day over one to two weeks. It typically produces a more stable end result because the pigment change happens gradually, and it leaves you with trays for future top-ups.

Combined treatment is what we most often recommend: an in-clinic session for the immediate change, followed by a short take-home course to deepen and stabilise it. For international patients this works well, since the trays travel home with you.

Sensitivity, and how we manage it

Transient sensitivity is the most common side effect and affects a substantial minority of patients. It is caused by peroxide passing through the dentinal tubules and is temporary — typically resolving within 24 to 48 hours. We reduce it by pre-treating with a desensitising agent containing potassium nitrate and fluoride, by keeping gel contact times within protocol, and by spacing sessions where a patient reacts strongly. Patients with existing sensitivity should say so before we start rather than endure it.

What whitening will not lighten

Crowns, veneers, bridges and composite fillings do not change colour. This has a practical consequence that catches people out: if you whiten teeth that sit next to existing restorations, those restorations will suddenly look darker by comparison and may need replacing to match. Always whiten first, then match new restorative work to the final shade — never the other way round.

Some intrinsic discolorations respond poorly. Tetracycline staining, particularly grey banding, is notoriously resistant and may need many weeks of supervised whitening or a different approach altogether. Single dark teeth after root canal treatment often respond better to internal bleaching, applied from inside the tooth. We assess which category you fall into before quoting a result.

Keeping the result

Whitening is not permanent. Colour typically holds for one to three years depending on diet and smoking. Reducing coffee, tea, red wine and dark cola, rinsing with water after them, and not smoking all extend it substantially. With take-home trays a single top-up night once or twice a year maintains the shade almost indefinitely — which is far cheaper than repeating the full treatment.