1 vinegar can't whiten teeth. Vinegar can remove some yellow stains on teeth, such as tea stains and smoke stains, and has the effect of whitening teeth. But vinegar can only be used for emergency treatment, not as a long-term whitening method. Because vinegar is acidic, it will decalcify teeth for a long time and corrode enamel, resulting in rough and fragile teeth, and in severe cases, it will become honeycomb teeth. It will be used for up to 2 months.

2 the principle of vinegar whitening teeth tartar is mainly composed of food residues, exfoliated oral epithelial cells, saliva and bacteria. Vinegar has a certain bactericidal effect, and the acetic acid contained in it can soften the substance in tartar and make it decompose and fall off, which is also the principle that teeth can turn white quickly after vinegar.

3 methods of whitening teeth with vinegar After brushing your teeth normally, carefully clean up the foreign bodies in your mouth, add white vinegar and try to send vinegar around your teeth for 2 minutes. In these two minutes, your teeth will feel sour and bitter. After 2 minutes, spit out the vinegar, and then brush the tooth surface carefully. At this time, the surface of your teeth is rough and it is difficult to brush. After cleaning, there is no smell in your mouth, and you can see that your teeth turn white instantly. This method is suitable for emergencies.

4 Tips and remedies Although whitening teeth can whiten teeth in a short time, it is generally not recommended to use them for a long time because the degree of damage to teeth is not clear. To truly whiten teeth, we must first develop good brushing habits, rinse our mouths after meals, brush our teeth in the morning and evening, have a balanced diet, keep our mouth clean and hygienic, and prevent teeth from turning yellow from the source.