But teeth can be effectively lightened with hydrogen peroxide (bleach) used on either the outside or inside of the tooth.
Tooth bleaching is completely safe as long as the bleach does not touch and burn the gums.
Bleaching improves the appearance of the teeth and is a better option than crowns and veneers for healthy teeth as it does not require changes to the shape of the teeth.
What does bleaching involve?
Bleaching the inside of the tooth
If the nerve of the tooth has died and the tooth’s root has been filled, bleach is put inside the tooth under a temporary dressing. The bleaching agent remains on the tooth for about a week before being cleaned out and a white filling put in place.
Bleaching the outside of the tooth
The outside of the tooth can be bleached either at home or in the dentist’s surgery.
The dentist will make a mould of your mouth so that a close-fitting tray can be made for you to wear over your teeth. A good fit is important as this will protect the gums during the bleaching process. The dentist will give you a bleach jelly to use in the tray. You will need to wear the bleach-filled tray for a few hours on several occasions, as instructed by the dentist.
In the surgery
In the dental surgery the dentist carefully applies a special barrier material to protect the gums from the much stronger bleaching agent, which is then applied to the teeth as a gel-like layer. A special bright blue light is used to activate the gel and the gel is rinsed away after about eight to ten minutes.
There are normally three applications, all administered in the one visit. The whole pain-free process lasts about one hour, after which you leave the surgery with whiter teeth and a more attractive smile.
We use Pola Office whitening. Watch the video for more infomation.