1. Maintain good oral hygiene: Brushing your teeth at least twice a day and using fluoride toothpaste can effectively remove stains on the surface of your teeth. Floss between your teeth to remove food debris and plaque.
2. Regular dental cleaning: Go to the dental hospital every six months or a year for professional teeth cleaning, can remove the accumulation of dental stones and dirt on the surface of the teeth, make the teeth whiter.
3. Reduce your intake of stained foods and beverages: Some foods and beverages (such as coffee, tea, red wine, cola, berries, etc.) are prone to staining of teeth. Reducing your intake of these foods in moderation and gargling immediately after eating them can help protect your teeth.
4. Drink more water: Drinking water can help wash away food debris and acidic substances in the mouth, reducing the damage to teeth.
5. Use teeth whitening products: There are many products on the market to whiten teeth, such as whitening toothpaste, whitening stickers, whitening powder, etc., which can help remove surface stains and help to whiten teeth after long-term use.