A perfect smile, but non-white teeth can ruin the image. However, in life, some people have tooth stains due to smoking and tea drinking. It not only affects aesthetics but also hinders health. Many people choose to get their teeth cleaned to achieve whitening effects, but this is actually very harmful to dental health. Below, check out a few methods recommended by the editor that can also quickly whiten your teeth!
　　DIY methods for whitening teeth
　　1. Hold vinegar (either aged vinegar or white vinegar) in your mouth for 1 to 3 minutes, then spit it out and brush your teeth. The effect is excellent! But your teeth will feel very sour and numb (the sensation will last about 2 minutes).