Smiling is free but when the teeth get to a certain point people start to become self conscious and then stop to smile freely and this is such a shame because smiling has a real positive impact on your life and well being.
Teeth get stained after years of things like smoking, drinking tea and coffee and even cola will eventually darken the teeth as the staining will get in to the porous micro ducts of the enamel and will slowly change the color over a period of time. As long as the staining has not penetrated the dentin then the teeth should whiten to a decent level and noticeable difference. The time the enamel is compromised is when there is years of heavy smoking and drinking tea as examples and will also depend on the enamel being overly porous as it cannot defend itself against the staining but luckily this happens very infrequently.
The type of whitening you select will depend on budget and how much effort you want to put in to whitening. One of the most important things to think about after having the teeth whitened is to keep it up and think of it as an ongoing activity. Like most things in our lives nothing lasts forever so re-whitening is something you need to consider whether that is regular usage of a home kit or pen or having the teeth re-whitened with the laser every 12 months just keep it going.
Link: EZine Articles
http://ezinearticles.com/?Just-Smile-Bright-With-Teeth-Whitening&id=5133830
Jane Pennington
www.teethwhiteningsmiles.com



