Teeth whitening is more effective on teeth that are on the yellow and white spectrum. Teeth that are shades of brown and grey are more difficult to whiten and may require a longer treatment, or stronger whitening agents.
If you have local discoloration that does not respond very well to whitening, then your dentist may discuss whitening in conjunction with more in-depth procedures, such as micro-abrasion, ICON resin infiltration treatment, composite bonding, crowns or veneers.
With all types of teeth whitening products, the results will vary from person to person, and depend largely on the original colour of the teeth, the condition of the teeth, the type of staining present and compliance with the teeth whitening regime.
The most difficult staining to remove is deep, intrinsic staining from factors such as tetracycline use. This type of staining can take many months of whitening to achieve a good result.
