Drugs, one of the main substances that cause this is tetracycline, which is usually provided to people with severe acne pictures. This antibiotic is known to cause severe tooth discoloration.
Also, foods like soy sauce, grapes, curry, coffee, tea, red wine and, of course, cigarettes also cause stains and yellow teeth. Especially foods that are slightly acidic, which allow stains left by food from sticking to teeth.
Methods for whitening teeth: their pros and contra dientes blancos2
One issue that must be considered, regardless of method used to whiten your teeth, that can only be achieved, usually a white relative. It happens that the most likely do not have, from night to morning, bright white teeth, but also would not look so good, it would not be natural. The basic rule in the bleaching of teeth, is that they are not whiter than the whites of their eyes.
1. Toothpastes
The dental bleaching toothpastes work gradually, and usually takes several weeks to show results. The drawback is that they are abrasive, so that over time can weaken truly the tooth enamel and make it look the same, just more yellow. So, you should check the ingredients to see how abrasive is on them. The Calprox is an ingredient that can replace certain mild abrasive and should not cause damage to teeth.
2. Tools
To remove stains, there are tools that are used almost like an eraser to teeth. These tools will remove the stains without damaging the teeth, usually work best when used with a teeth whitening toothpaste, and are especially good to use after eating or drinking anything that can stain.
3. Movies whitening
There is also a method that consists of a film of bleaching agents that is placed on the teeth. It sticks and is virtually invisible. While it works well, it can take weeks to achieve results, and again, the gums should be well protected.