Is there a way to whiten teeth roots?

[Daniel Eisenberg]

My current dentist said there isn't.

I have about 3-5 mm, more or less, of exposed roots on my lower front teeth. They are stained, probably from coffee. Can anything be done about this, or do I have to live with it?

Individual veneers are out of my budget, and the only other veneers I have seen (multi-tooth) I thought looked awful. Though maybe there are better ones I didn't notice.