1. table salt to brush your teeth. Dip a toothbrush in the right amount of salt, and then brush your teeth normally, you can use salt particles to rub the teeth, clean the sediment on the teeth, and a certain bactericidal and anti-inflammatory effect, can help clean the plaque, to achieve the effect of whitening the teeth, but also can inhibit the inflammation of the gums. And salt is common and cheap.

 2. Ggargle with vinegar. Take a small cup of vinegar into warm water. When you gargle, keep the vinegar to stay in the teeth for 1-2 minutes, spit out the vinegar after full contact with the teeth, then brush your teeth immediately, and break down the food residue and tartar on the teeth with vinegar to achieve the effect of whitening the teeth. But vinegar has a certain damage to the teeth, and the gums and taste are very uncomfortable, not suitable for regular use.

 3. Wash wash lemon juice. Pour the lemon juice into warm water and rinse your mouth, vomit for 1-2 minutes, then brush your teeth. Lemon juice contains a large amount of citrate, which can remove and inhibit calcium crystallization, prevent dental stones, and lemon juice is rich in vitamin C, to clean and whiten teeth and remove oral odor.

How to whiten your teeth quickly

 1. Dental cleaning. Let the dentist use professional tools to clean the stubborn dirt and stones on their teeth to achieve rapid tooth whitening results. However, tooth cleaning is mainly to let the teeth show the original color. Although it will be brighter and brighter than the original, it will be limited by the actual teeth. If the teeth are not white, the whitening effect after teeth washing will naturally be greatly reduced.

 2. Drug rinach method. Drug bleach bleach teeth to quickly whiten teeth. This method has a significant whitening effect for orange and brown discoloration teeth with yellowing teeth with age, but is prone to tooth sensitivity, and the whitening effect has a short duration.

 3. Resin veneer. The resin veneer grinding off a layer of the tooth surface, and then use white resin material on the paste to cover the original teeth. The tooth resin veneer can remain for years, but still has the possibility of shedding.

 4. Cold light whitening or laser whitening. This whitening technology introduces the latest American technology, through special optical lenses to separate the harmful ultraviolet and infrared rays, acting on the whitening agent to make its rapid redox reaction, to achieve the role of rapid tooth whitening.

What to do with the yellow teeth

 1. Less tea and coffee. Often drink tea and coffee, easy to leave tooth stains on the teeth, for a long time, the teeth will be yellow and black.

 2. No-smoking. Tar and nicotine in cigarettes can cause the teeth to turn yellow.

 3. Brush your teeth in meal logistics. After eating, food residue will remain on the teeth and teeth, should floss to clean the teeth, and brush your teeth frequently, brushing can quickly clean the residual food in the teeth, prevent the formation of tartar, prevent tooth yellowing.