牙齒點解變黃??

Why the teeth will turn yellow?? There are several reasons :

--your teeth orginal shade.......cant restore......some people will use a porcelain facing (a piece of porcelain of tooth colour) to cover the shade (most the film star will use)........but its not good for your teeth...

--you brush too hard.....the 1st layer is transparent material call dentine.....its the harder part of the teeth but will be reduce by hard brushing.....so...recommend gentle massage your teeth and gum in circular motion......we always advice the patient to do this..
otherwise, the dentine 2nd layer is yellow in colour will be slown...and also it is more sensitive than 1st layer.....

--the stain of the tea, coffee or chinese machine........can be remove by scaling(cleaning your teeth by dentist)

one thing remind you 14天變白ga牙膏 or other whitening tooth paste...also contain the material like sand (but very fine).....they also scratching you tooth surface to keep your teeth white.........not advice for long term use.......

If you want to prevent tooth declay 蛀牙, first of all, most people including me will not pay attention with some part like the lower inside area.....every part should gentlely....place the tooth brush around 10 count for each part.......牙縫 need to use dental floss......

Hope its help~~

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