2017年爆款冷光美牙仪牙齿美白去黄牙黑牙，让你爱上美牙，从此自信。

This is the 2017 hot style cold light tooth whitening tooth whitening to yellow teeth black tooth, let you fall in love with the tooth, from now on self-confidence.

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使用步骤也非常简单的：

第一步，先刷牙;

第二步：用纸巾或者化妆棉擦干牙齿；

第三步，涂凝胶到仪器或牙齿上（涂牙齿上效果更好）；

第四步，用口咬着美牙仪；建议亲每天晚上睡觉前使用一次，这样效果会更好的。

The steps are also very simple:

First, brush your teeth;

Step 2: dry your teeth with a paper towel or a cotton pad.

The third step is to apply the gel to the instrument or the teeth (to paint the teeth better).

Step 4: bite the tooth with your mouth. Suggest that you use it once a night before you go to bed, so it will be better.