Is it possible for me to keep my teeth really white?

No coffee- tea: Stains of teeth will occur with drinking of coffee and tea. Smoking -chewing tobacco and some ethnic foods can cause staining. Always brush teeth and rinse with mouthwash.

Bleaching: Teeth for an hour in a dentist's office and using the take home tray to maintain the whiteness and better as prescribed by your dentist is another way...