Teeth whitening: assessing the shade first
Whitening changes the shade of natural teeth. Before discussing a method, an assessment looks at the cause of discolouration, oral health and visible restorations.
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This information is general. It cannot establish whether this care is right for you, replace an examination or predict an individual result.
Reviewed by Dr Fabio Cunha, .
Key points
- Discolouration may be on the surface or within the tooth; its cause matters.
- An assessment checks teeth, gums, sensitivity and visible restorations.
- Crowns, veneers and fillings do not change shade in the same way as natural teeth.
- Response, sensitivity and how long a shade change lasts vary; results cannot be predicted remotely.
Understanding tooth colour
Surface stains and changes within a tooth have different causes. Professional cleaning may remove deposits, while whitening is intended to change the shade of natural tooth tissue.
The assessment
The dentist examines the teeth and gums, asks about sensitivity and checks existing fillings, crowns and veneers. A single darker tooth may need a specific assessment rather than a general whitening plan.
Comparing options
The right approach depends on the cause of the colour change and your oral health. In-practice and home-based approaches involve different instructions and supervision. Online products should not replace professional advice.
The treatment pathway
If whitening is suitable, the team explains the chosen method, its use and the follow-up. No product, number of sessions or final shade can be selected from a web page.
Results and limits
Natural teeth and existing restorations can respond differently. Sensitivity may occur and the change in shade can vary over time. A precise result or duration cannot be guaranteed.
Costs and decision
Discuss the proposed approach, any preparatory care, limits and price after an assessment. Ask for a personalised quotation before starting.
Teeth whitening: common questions
Does professional cleaning whiten teeth?
It can remove surface deposits but does not bleach the natural tooth shade.
Will whitening work on a crown, veneer or filling?
These restorations do not change shade like natural teeth; discuss visible colour differences before treatment.
Why is one tooth darker than the others?
There are different possible causes, so a dental assessment is appropriate.
Can whitening cause sensitivity?
Sensitivity can occur. Discuss existing sensitivity and any symptoms with your dentist.
What is the difference between in-practice and at-home whitening?
The methods and supervision differ. Your dentist can explain which, if any, is appropriate for you.
What about whitening kits sold online?
Their suitability and safety cannot be judged for your teeth without an assessment.
How long will the shade change be visible?
It varies with the individual situation and habits; a duration cannot be guaranteed.
How much does teeth whitening cost in Geneva?
The cost depends on the method and any preparatory care. Request a personalised quotation.
General medical sources
Information specific to your situation is provided during your consultation.
- Société suisse des médecins-dentistes SSO, Ne pas éclaircir ses dents sans conseil autorisé
- American Dental Association, Whitening
- NHS, Teeth whitening
- Office fédéral de la santé publique, Soins dentaires
Sources listed on the corresponding French page.
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Teeth whitening
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