Especially after the video of Angel and Wang kissing in Hainan was exposed, it caused an uproar. Since then, Angel has kept a low profile and rarely made public appearances in front of the media. Angel's first appearance after marriage was old and her yellow teeth were pure. The internal reason mainly refers to that the tooth itself is a little yellow, and the color of the tooth gradually deepens due to lack of care during the tooth development. The yellowing of teeth caused by this factor needs to be completed by chemical bleaching or masking whitening. 2. External reasons: keep your teeth clean and tidy, brush your teeth after meals, master the correct brushing method, choose a toothbrush with good material and toothpaste with ideal whitening effect. Smoking is an important factor in yellow teeth, so you must give up smoking. Pay attention to avoid long-term drinking of drinks or foods that tend to make teeth yellow. 2, severe yellowing can do tooth bleaching: if the tooth yellowing lasts for a long time, it will gradually become intractable tooth yellowing. You can go to the hospital for tooth bleaching. At present, there are various advertisements for tooth whitening in the market. I suggest you go to a professional institution for treatment.