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What to Know Before Professional Teeth Whitening
Suitability, expectations, and questions to ask.
Reviewed by [verified clinician]

Whitening can be a popular way to brighten a smile, but it isn’t suitable for everyone. Understanding the basics helps you have a better conversation with your dentist.
Suitability comes first
Your teeth and gums should be assessed before whitening. Some causes of discolouration respond differently, and existing restorations do not change colour in the same way as natural teeth.
Set realistic expectations
Results vary from person to person. Your dentist can explain what may be achievable, possible side effects such as temporary sensitivity, and how to maintain results.
Questions to ask
What is causing my discolouration? Which options are suitable for me? What are the risks and costs? Asking these questions helps you make an informed choice.
Have a personal concern? Speak with a qualified dental professional who can examine you and give advice specific to your needs.
Medical disclaimer: this article is for general educational purposes and does not replace an examination, diagnosis, or advice from a qualified dental professional.
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