The techniques of tooth whitening have been extensively researched and it has been found that a typical course of treatment has the same effect on the teeth as drinking one glass of cola, however there have been no studies that investigate the long-term use of these products. Sensitivity during treatment or for a few days after is the most frequently reported side effect. If this happens it usually disappears of its own accord soon after the treatment has stopped, and can be eased by using sensitive toothpaste or a fluoride mouthwash.

Tooth whitening is a complex procedure that should be carried out under the supervision of a dentist after a thorough examination and assessment of your teeth. To ensure the best result it is important to follow your dentist’s instructions carefully. Some over-the-counter kits can damage your teeth as they may contain acids or could be abrasive.