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Teeth whitening in Valencia is an advanced aesthetic treatment that lightens the shade of the teeth using whitening agents that penetrate the enamel to break down accumulated stains without damaging it.
Achieving whiter teeth is not just an aesthetic matter: stains from coffee, wine, tobacco, or the simple passage of time affect confidence and the first impression we project. Choosing the right place to perform it makes the difference between a safe, long-lasting result or unnecessary sensitivity.
Dr. Lucía Asensio Romero (Registration No. 46002287) supervises all teeth whitening treatments at Asensio Dental Clinic, where we have been performing this treatment in Valencia for over 30 years. Each case includes a prior assessment of the state of the enamel and gums, because safe whitening starts with a correct diagnosis. If you are looking to improve your smile, we invite you to discover all our cosmetic dentistry services in Valencia.
What is teeth whitening and how does it work?
Teeth whitening acts on both intrinsic and extrinsic tooth stains. The whitening gel releases oxygen molecules that break the chemical bonds responsible for discoloration, lightening the color without damaging the enamel structure when the procedure is correctly supervised by a specialist.
It is important to distinguish it from over-the-counter cosmetic products: professional treatments use peroxide concentrations regulated and supervised by the dentist, which guarantees the safety of the procedure and the permanence of the results. Pharmacy or supermarket kits contain much lower concentrations that produce minimal results and, in some cases, unnecessary sensitivity due to poorly fitting trays.
Professional teeth whitening is indicated for extrinsic stains from coffee, tea, wine, or tobacco, and for natural yellowing over time. It is not indicated for intrinsic stains from tetracycline or severe fluorosis, cases in which dental veneers offer more predictable results.
In-office teeth whitening in Valencia: The most effective option
In-office teeth whitening is the modality that offers the most visible and controlled results. At Asensio Dental Clinic, we perform the treatment in one or two sessions of between 60 and 90 minutes, always preceded by an assessment of the state of the gums and enamel.
The protocol includes protecting the gingival tissue with a light-curing composite barrier, applying the 38% hydrogen peroxide whitening gel at the appropriate concentration for each patient, and activation using the Philips Zoom LED lamp. The result is immediate and, with proper care, can be maintained for between one and three years.
Not all patients are direct candidates: active cavities, highly visible restorations in the anterior area, or severe sensitivity require a prior assessment. The first consultation at Asensio Dental Clinic is free and includes a complete diagnosis of the state of the enamel before proposing any treatment.
LED Teeth Whitening in Valencia
LED teeth whitening uses a low-intensity light source to activate the gel and accelerate the stain oxidation process. This is the method we apply at Asensio Dental Clinic as part of our in-office treatment: faster than techniques without light activation and safer than lasers for most patients, as it does not generate heat on the tooth.
The LED light does not whiten by itself — it is the gel that acts — but it significantly reduces session time and improves the uniformity of the result. In a single appointment, it is possible to achieve between 6 and 8 shades of lightening depending on each patient’s starting point.
| Modality | Location | Agent | Result | Session Duration |
|---|---|---|---|---|
| In-office whitening with LED | Clinic | 38% Hydrogen Peroxide | 6 – 8 shades | 60 – 90 min |
| At-home whitening with tray | Home | Carbamide Peroxide | 4 – 6 shades | 2 – 4 overnight weeks |
| Combined in-office + home | Both | Both agents | Maximum result | 1 session + maintenance |
At-home whitening with custom-made trays
As a complement to the in-office treatment, or as an alternative for maintenance, we offer at-home whitening kits with custom-made thermoformed trays and controlled concentration gel. The personalized tray is essential: a generic tray does not seal correctly, allowing the gel to contact the gums and causing unnecessary irritation.
The process requires between two and four weeks of nightly application. The results are more gradual than in the clinic but equally safe, as the gel concentration is formulated for supervised home use. We do not recommend generic products without a prescription: inadequate concentration is the main cause of post-treatment sensitivity.
Who can have teeth whitening?
Candidates for the treatment are adults with healthy teeth, gums in good condition, and without very extensive restorations in the anterior area. Whitening is not indicated during pregnancy or breastfeeding, nor in patients with severe untreated hypersensitivity.
Teeth with crowns, veneers, or fillings in the anterior area do not whiten with the gel, so if you have visible restorations, it is important to assess whether the treatment will achieve a homogeneous result. The free prior assessment at Asensio Dental Clinic resolves all these questions before investing in the treatment.
| Candidates | Non-candidates |
|---|---|
| Adults with healthy enamel | Pregnant and lactating women |
| Gums in good condition | Untreated active cavities |
| Stains from coffee, wine, or tobacco | Severe hypersensitivity |
| Yellowing due to aging | Severe tetracycline stains |
| Prior to veneers or Lumineers | Under 18 years of age |
Care after teeth whitening
During the first 48-72 hours, the enamel is more porous and absorbs pigments more easily. This is the key period to protect the result: coffee, tea, red wine, red fruits, carrots, and tobacco should be completely avoided. From the third day, the usual diet can be resumed in moderation.
The temporary sensitivity that some patients experience normally disappears in less than 72 hours. Our protocol includes the application of fluoride and desensitizing agents at the end of each session to minimize this effect. If sensitivity persists for more than three days, contact Asensio Dental Clinic directly.
To prolong the result in the long term, we recommend periodic check-ups and annual maintenance sessions with the at-home kit. If you want to know more about how long the result lasts and how to maintain it, consult our article on how long teeth whitening lasts.
Price of teeth whitening in Valencia
The price of in-office teeth whitening at Asensio Dental Clinic is €150 per cycle, including the prior assessment, the session with the Philips Zoom lamp, and the desensitization protocol. Check all cosmetic treatment prices on our cosmetic dentistry pricing page. We offer interest-free financing and a personalized quote at the first free visit.
Frequently Asked Questions about teeth whitening
How long does the result of teeth whitening last?
With proper care, the result can be maintained for between one and three years. The duration depends on the patient’s habits: consumption of coffee, tea, red wine, or tobacco accelerates repigmentation. Annual at-home maintenance sessions significantly prolong the result. See our article on how long teeth whitening lasts for more detail.
Does teeth whitening damage the enamel?
Professional teeth whitening performed in a clinic does not damage the enamel when applied with the correct protocol. The whitening agents act on the organic pigments lodged in the dentinal tubules without altering the mineral structure of the tooth. Post-treatment sensitivity, when it appears, is temporary. If you have doubts about whether it hurts, check our article on whether teeth whitening hurts.
Is whitening safe during pregnancy?
We do not perform whitening during pregnancy or breastfeeding. Although there is no evidence of proven fetal harm, the principle of clinical precaution advises postponing the treatment until after the breastfeeding period.
Can I have whitening if I have veneers or crowns?
The whitening gel does not act on ceramic or composite restorations, so if you have visible veneers or crowns in the anterior area, whitening can create a shade difference. Ideally, whitening should be performed before placing any cosmetic restoration, planning the final shade from the start.
How many sessions do I need?
In most cases, a single in-office session is sufficient to achieve a visible and satisfactory result. Cases with very deep stains or very dark teeth may require a second session or be complemented with the at-home kit. Dr. Lucía Asensio Romero establishes the number of sessions needed after the initial assessment.