1. Go to the dentist for ultrasonic tooth cleaning and bleaching.

2, with a simple method, adhere to 1 month or so, a little longer, the effect is the same as washing teeth. The following is how to use it. It really works. Method of brushing teeth: 1 toothbrush, 3 toothpastes. The first toothpaste, Zhonghua Toothpaste, has the same effect as washing teeth once a month, and it is really effective for dental calculus between root and teeth. Can only say that it is physical whitening. The second toothpaste, Colgate's Super White, has the effect of chemically bleaching teeth. The third toothpaste, Crest's herbal essence, has a fresh breath and prevents tooth decay. Brush your teeth three times. First use China Healthy Tooth White 1 min for deep cleaning, then use Colgate Ultra White 1 min for chemical bleaching, and finally use herbs for 3 minutes. Once in the morning and once in the evening, unless it is tetracycline teeth, it will be effective in two weeks.

3, vinegar at home, old vinegar, white vinegar can be contained in your mouth 1 minute to 3 minutes, and then spit it out to brush your teeth. The effect is very good! But even the teeth will feel very sour, numbness (feeling will last for about 2 minutes) can not last, often do it once every 2 months, and it will be fine, and it can remove bad breath.

4. Dry the orange peel, grind it into powder, mix it with toothpaste and brush your teeth, and your teeth will soon turn white.

When brushing your teeth, using some yeast powder on your toothbrush can help your teeth whiten.

6, chew raw peanuts, don't swallow, use peanut crumbs as toothpaste to brush your teeth, which can make your teeth white.

7. Use cuttlefish bones, crush them and put them in a toothbrush for toothpaste. Cuttlefish are squid and squid. It has a big white bone. Scraping nails can produce a lot of white powder, which can be used as toothpaste to whiten teeth.