How do maintain my white teeth for a long time?

Healthy lifestyle: Healthy diet. Small amounts of coffee, tea, red wine, grape juice, blueberries and other dark foods and drinks that can stain. Good brushing and flossing. Regular dental exams and cleaning. No smoking. All these will help you maintain healthy white teeth.

Take good care : Brush and floss daily, see a dentist twice a year (or more if you have gum disease), get all needed treatment done, and whiten!