What is teeth whitening?
Dental whitening ranks among the top cosmetic procedures requested by our patients. Our approach involves a thorough diagnostic process, tailored treatment planning, and ongoing maintenance. By using minimally invasive techniques and materials, teeth whitening significantly enhances the aesthetic quality of our patients' smiles. Its widespread appeal is due to the remarkable results it provides, all at an accessible price. Dental whitening brightens and adds radiance to the teeth, removing most yellow or brown stains caused by food and tobacco. Sometimes, other cosmetic dental treatments such as veneers or crowns are needed to address tougher stains.
Teeth whitening with LED lamp
Teeth whitening improves the aesthetics of your smile with minimally invasive techniques and materials. It is popular and affordable due to its remarkable results and rigorous diagnostic, treatment, and maintenance protocol.
Teeth whitening
Through Pepper Finance and Banco Santander, you can finance complex dental treatments with terms of up to 24 months, interest-free.

How is teeth whitening performed with an LED lamp?
Before teeth whitening treatment, the specialist checks the health of your gums and detects any potential pathologies. It's important to ensure there are no hidden cavities and perform a complete professional dental cleaning.
Cold light or LED lamp whitening is an advanced technique used in dental offices. It involves applying a whitening gel containing 35%–40% hydrogen peroxide, depending on the brand, and activating the lamp to accelerate the process. This method is fast and effective, but more expensive than at-home whitening and is performed exclusively in the clinic under supervision.
Types of teeth whitening
External whitening
- The most common whitening procedure is performed in the clinic in a single session, applying whitening agents to the teeth and using a cold light or LED lamp.
- It is a quick procedure but more expensive. There is also whitening with trays, which is done at home using custom trays filled with whitening gel, which can be worn during the day or at night depending on the concentration of the gel.
Internal whitening
- Internal whitening is used for teeth with severe staining due to trauma or root canal treatments. Unlike external whitening, which works on all the teeth, internal whitening is applied to a single tooth and focuses on lightening the dentin in the pulp chamber.
- This procedure requires that the tooth structure is in good condition.

FAQ
Is teeth whitening painful?
Although is not painful, some patients may experience temporary dental hypersensitivity as a side effect, which will gradually disappear a few days after the treatment is completed.
When should dental whitening be done?
People who have good oral health and want to lighten the shade of their teeth can undergo teeth whitening. However, it is advisable to consult a dentist to get advice on the most suitable type of whitening according to our needs, in order to achieve optimal results. In some cases, dental whitening may be less effective if the patient has severe stains or suffers from an oral disease.
How long does dental whitening last?
The duration of teeth whitening results is variable and depends on multiple factors. It is advisable to have periodic maintenance to preserve the treatment results.
How much does the whitening treatment cost?
The price varies depending on the chosen treatment. In Spain, a clinic session costs approximately between 300 and 450 euros. Take advantage now of the special price for teeth whitening (both arches) with LED lamp at the SDS dental clinic, dentist in Vilafranca del Penedès.
Verified Google reviews
EXCELENTE A base de 103 reseñas Raquel Raquel2025-07-21Trustindex verifica que la fuente original de la reseña sea Google. Buenos profesionales, muy buen trato y muy amables . Excelente Clinica Fredy Gonzales2025-07-18Trustindex verifica que la fuente original de la reseña sea Google. MUY BUEN SERVICIO Y MUY BUENA COMUNICACIÓN Nathaly Bustamante2025-07-05Trustindex verifica que la fuente original de la reseña sea Google. Anca es la mejor dentista para adultos, pero sobre todo con los niños. Mi hija tuvo varias experiencias traumáticas con varios dentistas para curarle la caries. Anca fue la única que tenía la paciencia para curar la caries. Muchas Gracias Anca Montse Alpiste2025-06-21Trustindex verifica que la fuente original de la reseña sea Google. Trato amable y muy profesionales. Gracias equipo de SDS! Agustín Pérez2025-06-06Trustindex verifica que la fuente original de la reseña sea Google. ¡Trato excepcional! Sin duda lo recomiendo Jaime Felipe2025-06-05Trustindex verifica que la fuente original de la reseña sea Google. Els mijor dentistas de Vilafranca Calin Groza2025-06-04Trustindex verifica que la fuente original de la reseña sea Google. Todo muy profesional y muy atentos con el cliente , la verdad muy profesionales! Volvemos a tener dentista !🥳