Just about anyone is a candidate for teeth whitening. However, the following cases should be considered:
• People with dark yellow or yellow-brown teeth tend to whiten better than people with grey or bluish-grey teeth.
• Multi-coloured teeth, especially if due to tetracycline, do not whiten well.
• People with significant periodontal disease are not good candidates.
• If you are pregnant, obtain permission for your doctor before trying the whitening procedure.
• People with minimal discolouration, (teeth that are already very white) may not see a substantial degree of whitening.
• Teeth with many fillings, cavities, chips, etc., are usually best treated by bonding, porcelain veneers or porcelain crowns. Any current restoration you have, such as, fillings, porcelain crowns, onlays and inlays cannot be whitened.