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Dental whitening (bleaching): When and how?

This patient from Montréal had yellow teeth in various shades. Dr. François Lechner performed a bleaching treatment and added two porcelain veneers on the central incisors.

The natural colour of teeth varies from grey to yellow depending on many factors. Teeth change colour naturally with age; however using tobacco products as well as consuming certain foods and beverages can change their appearance.

Teeth whitening is the most popular treatment in dental offices. Who would not like to have a more radiant smile and whiter teeth?

To respond to this huge demand, various whitening products are available. Prices vary depending on the technique used. But which product will be the best for your needs?

The majority of whitening products are made from hydrogen peroxide and could change the tooth colour. However, bleaching products are not necessarily as effective.

First you must consult with your dentist who will help you determine the cause of the discoloration. Non-vital teeth do not bleach well and need other treatments. Also, whitening treatments are not possible on porcelain crowns, veneers, or all other restorations. As a result, these restorations might not match your natural teeth colour after whitening.

At the dental office, a spectrophotometer is used to determine the actual colour of the teeth. A treatment plan will be determined.

If your teeth are grayish, we generally recommend a take-home program with costume-made trays and a low-concentration whitening gel.

If you have yellow teeth, we recommend an in-office whitening treatment with costume-trays for touch-ups.

Teeth sensitivity and tissue irritation might occur during the whitening treatment. This, however, is temporary.

It is important to understand that the results of this treatment cannot be guaranteed and can vary depending on the patient’s oral hygiene habits.

Before                                                                   After

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