Well for some reason these forums don't want to let me do a quote...keeps redirecting me to the forum index when I try to hit the quote button...
As to the question of removing the actor's teeth, they COULD do it with CGI, but it would be pretty expensive for something that trivial. As to why they didn't use tooth-black makeup for his closeups, search me...
No, really...search me...I stole their makeup...