Teeth whitening is a simple cost effective way of improving your smile. It involves the controlled use of carbamide peroxide to removed intrinsic stains from within the tooth structure. External stains are not removed by tooth whitening but can very simply be removed by our dental hygienist.
There are a number of methods that can be used to carry out teeth whitening, most commonly by tray teeth whitening or laser whitening techniques.
Tray whitening is the safest and most effective way of whitening teeth. In this method custom made whitening trays are used to hold whitening gel in contact with your teeth for an extended period of time, usually while you sleep. The effectiveness of teeth whitening depends on the length of time the gel is in contact with the teeth and the dose of carbamide peroxide used. Using a higher dose can improve the effectiveness of teeth whitening but also increase the likelihood of complications such of tooth sensitivity. Recently introduced European directives limit the strength of whitening gel that can legally be used in teeth whitening.
Laser tooth whitening is not an effective way of producing permanent teeth whitening. In the past very strong carbamide peroxide solution could be used in conjunction with a “laser” to whiten teeth. The reality is the “laser” had little or no effect and any permanent tooth whitening was related to the strong gels used at the time. Laser whitening does produce a short term whitening effect as it dries out the teeth. Teeth however quickly return to their old colour when they are rehydrated in the mouth.