A brighter look from Kerry; a flashier look from Brady By Carol Beggy & Mark Shanahan, Globe Staff | June 15, 2004 TELLING THE TOOTH Despite a temporary loss of wrinkles, Senator John Kerry denied claims earlier this year that he underwent Botox treatments. But there's no denying the aftereffects of a piece of cosmetic work he had done yesterday. The presumptive Democratic presidential nominee emerged from a morning of seclusion in Washington with two new pearly-white-capped teeth at a airport rally in Atlantic City. The noticeably improved smile is not only bright, it corrects the angled teeth and one...