The teeth with the root canals are looking gray, yellow & my teeth don't match. My insurance approved four veneers for my four front teeth. Of course, my out of pocket cost is substantial but worth it if my smile looks unison. Would you recommend veneers? If so, what type? Some look "fake" & others look very natural. I would prefer to keep as much of my teeth as possible but was also considering bonding. Then I've read that crowns would be best. What would be best for my teeth?