What should I do about yellow spaces between teeth?

1. Maintain regular oral hygiene. Yellowing between teeth is mainly caused by dental plaque, so regular brushing and flossing are essential. 2. Schedule routine dental checkups. Professional cleaning, whitening, and similar treatments can remove surface pigmentation on teeth, helping to whiten the spaces between teeth. 3. Reduce intake of pigmented foods and beverages such as coffee, tea, and red wine. At the same time, increase consumption of fruits and vegetables rich in vitamin C to help maintain dental health.