How teeth get stained?
Teeth may require whitening for several reasons. The main causes:
- the consumption of food and / or drinks which contain dyes;
- nicotine and other components of cigarettes that deposite on the teeth;
- some drugs or excessive doses of fluoride;
Pigmenting factors
Some foods that we consume daily can cause the external pigmentation of the teeth, making them darker or causing stains.
- Coffee or tea;
- Tobacco;
- Red wine;
- Caffeine-based drinks;
- Artichokes, thistles;
- Cherries and blackberries;
- Soy;
- Cocoa.
There are other factors responsible for tooth pigmentation. In these cases, the problem is caused by the internal pigmentation of the tooth:
- Drugs like tetracyclines and minicles;
- Excessive intake of fluoride causing white spots;
- Trauma or necrosis of the tooth pulp in case of dead or devitalized teeth;
- Aging;
How teeth whitening is performed
There are different bleaching techniques. All procedures are based on the application of gel which containes peroxide.
In some cases we can use abrasive and polishing pastes or the laser. It is important to evaluate the characteristics of tooth enamel to decide which treatment will be the best.