Usually work is very tired, the task is very heavy, and I have to work overtime after work. Stay up late at night and get up early in the morning. To cheer up. I often drink coffee for many years, which results in a lot of tooth stains. Not long ago, I found several good tips for removing tooth stains. Now let's share it with you.
1. Salt brushing: brush your teeth in a paste with salt and toothpaste and stick to it for a period of time.
2. Vinegar gargle: hold the vinegar in your mouth and spit it out later. Then brush your teeth.
3. Baking soda brushing your teeth: brushing your teeth with baking soda mixed with toothpaste will be effective for a long time.
