Method 2: Chew raw peanuts, don't swallow them, and brush your teeth with peanut crumbs as toothpaste, which can make your teeth white.
Method 3: Put vinegar (old vinegar, white vinegar, but not vinegar essence) in your mouth 1 minute to 3 minutes, and then spit it out to brush your teeth. This method is not recommended, but it can be used occasionally. Regular use will make teeth sour)
Method 4: Tooth washing: I have tried to treat the symptoms, not the root cause. Tooth washing will not make teeth white, but will become cleaner. I heard from my doctor friend that long-term tooth washing is very bad for teeth.
Method 5: Cold light whitening: it will whiten teeth with obvious effect. Its principle is to use a special bleaching agent to catalyze by cold light, and then react with the pigment on the surface and deep layer of teeth to whiten teeth.
Method 6: Of course, you should brush your teeth frequently, not just once. Be sure to brush your teeth once in the morning for three minutes, so that you can clean your teeth thoroughly.
Method 7: Tooth powder, I think it has the best effect and no side effects. Anyway, I have to brush my teeth every day, so I use tooth powder as toothpaste, and the effect is obvious. Especially with tea stains, tobacco stains and coffee stains, the effect is better.
Matters needing attention
Everyone has a love of beauty. But I hope all my friends will master good and healthy methods to whiten their teeth.
It's a three-point poison, so I generally don't recommend tooth cleaning or cold light whitening to whiten teeth.
Be sure to maintain good living habits and brush your teeth in the morning and evening.