I want to permenantly close the gap between my top, front two teeth. I've already had braces and the gap has since reopened. I've been told that I can either do bonding, a filling, or veneers. Since I don't have insurance I want the cheapest option that will look nice and still allow my mouth to function normally for years to come. My gap is about 2mm wide and I and all my teeth and gums are perfectly healthy. How much will my cheapest, best option cost me????