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Teeth Whitening

What is Teeth Whitening?

In today’s society, aesthetics are highly valued and, as such, in recent years patients have increasingly come to us with the desire to achieve a healthy, harmonious and beautiful smile. Colour is one of the most easily discernible elements that can be easily changed using teeth whitening.

Teeth whitening is a simple, non-invasive procedure that lightens the colour of natural teeth through a process of oxidation of tooth pigments, whereby the whitening agent/gel enters the surface of the tooth and releases molecules that cause the pigment to discolour, making the teeth lighter.

branqueamento dentário

What is Teeth Whitening?

In today’s society, aesthetics are highly valued and, as such, in recent years patients have increasingly come to us with the desire to achieve a healthy, harmonious and beautiful smile. Colour is one of the most easily discernible elements that can be easily changed using teeth whitening.

branqueamento dentário

Teeth whitening is a simple, non-invasive procedure that lightens the colour of natural teeth through a process of oxidation of tooth pigments, whereby the whitening agent/gel enters the surface of the tooth and releases molecules that cause the pigment to discolour, making the teeth lighter.

branqueamento dentário

The whitening agent consists of hydrogen peroxide or carbamide peroxide and does not cause any changes to the enamel.

Before having your teeth whitened, a clinical and radiographic assessment of your dental and periodontal condition must be carried out, and there may be a need for dental treatments prior to whitening.

When carried out with the assistance of a dentist specialised in the area, this is a safe, effective treatment that can be adapted to the expectations and conditions of each patient.

It should also be noted that the whitening gel only works on natural teeth, so if there are previous restorations, crowns, bridges or veneers, these treatments may have to be replaced after whitening.

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The whitening agent consists of hydrogen peroxide or carbamide peroxide and does not cause any changes to the enamel.

Before having your teeth whitened, a clinical and radiographic assessment of your dental and periodontal condition must be carried out, and there may be a need for dental treatments prior to whitening.

branqueamento dentário

When carried out with the assistance of a dentist specialised in the area, this is a safe, effective treatment that can be adapted to the expectations and conditions of each patient.

It should also be noted that the whitening gel only works on natural teeth, so if there are previous restorations, crowns, bridges or veneers, these treatments may have to be replaced after whitening.

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Factors that cause colour changes in teeth

The colour of natural teeth can be affected by various factors.
Surface stains / discolourations (called extrinsic stains) are mainly caused by the consumption of coffee, tea, soft drinks and red wine. Smoking habits or poor oral hygiene can also cause teeth to darken.

Internal stains (called intrinsic stains) can be caused by treatment with tetracyclines (antibiotics) during tooth formation; by darkening of the teeth as part of the ageing process; by excessive fluoride intake during tooth formation (from birth to 16 years of age), which gives teeth a whitish stained appearance; or by trauma to the tooth.

Identifying the cause of tooth darkening is essential in order to identify the most appropriate technique for each case.

branqueamento dentário

Factors that cause colour changes in teeth

The colour of natural teeth can be affected by various factors.
Surface stains / discolourations (called extrinsic stains) are mainly caused by the consumption of coffee, tea, soft drinks and red wine. Smoking habits or poor oral hygiene can also cause teeth to darken.

branqueamento dentário

Internal stains (called intrinsic stains) can be caused by treatment with tetracyclines (antibiotics) during tooth formation; by darkening of the teeth as part of the ageing process; by excessive fluoride intake during tooth formation (from birth to 16 years of age), which gives teeth a whitish stained appearance; or by trauma to the tooth.

Identifying the cause of tooth darkening is essential in order to identify the most appropriate technique for each case.

branqueamento dentário

Types of Teeth Whitening

Outpatient Whitening

At-home whitening, where the patient comfortably applies a whitening gel to a tray tailored to the patient’s mouth. It should be used every day or every other day for 7 to 15 days, leading to very long-lasting results.

In-office Whitening

In just one appointment, a gel with a higher concentration is applied directly to the surface of the tooth for a period of approximately 1 hour. In this type of whitening, the active ingredient of the product is combined with the properties of LED or laser light, achieving visible results on the spot. It is the ideal treatment for patients who want immediate results.

Types of Teeth Whitening

Outpatient Whitening

At-home whitening, where the patient comfortably applies a whitening gel to a tray tailored to the patient’s mouth. It should be used every day or every other day for 7 to 15 days, leading to very long-lasting results.

branqueamento dentário

In-office Whitening

In just one appointment, a gel with a higher concentration is applied directly to the surface of the tooth for a period of approximately 1 hour. In this type of whitening, the active ingredient of the product is combined with the properties of LED or laser light, achieving visible results on the spot. It is the ideal treatment for patients who want immediate results.

Faq

Before having your teeth whitened, you should always have a consultation with your dentist to assess your oral health. It is also advisable to have an oral hygiene appointment, with scaling and polishing, prior to tooth whitening.

Tooth whitening may be contraindicated in patients with high tooth sensitivity or allergies to any of the product’s constituents. In addition, it is not recommended for young people under the age of 18.

With regard to pregnancy, there are no known contraindications, however, as a precaution, it should ideally be carried out before or after pregnancy.

The duration of whitening always depends on the patient’s diet, oral hygiene habits, smoking habits and the care taken to follow the recommendations given by the dentist, but it will never have permanent effects.

It usually lasts 2 years, but it is unlikely that the teeth will return to their natural colour, as it is possible to periodically reinforce the treatment with trays at home, whenever necessary and desired.

Teeth whitening is a non-invasive treatment that does not compromise tooth enamel, the hardest, outermost layer of our body. When carried out under the supervision of a dentist, the treatment will have no negative effects on the structure of the teeth.

Any tooth sensitivity that the patient may experience after tooth whitening is a consequence of the interaction between the components of the whitening gel and the surface of the tooth, but is transient and easily attenuated with the desensitising products that the dentist may recommend.

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