What is the best treatment for color differentiation difficulties?

Depends: Tooth whitening is the first non-invasive choice. You can selectively whiten darker teeth if you want. Stay away from the one hour in office whitening as it is the least effective, most expensive, most side effects. And the light used with it has no effect. In my office we also offer internal bleaching if root canal treated teeth. As a last resort porcelain veneers can be done.