Fourth year dental student Bridget Lamberts poses with Dr. Laura Tam (in mirror) at the University of Toronto School of Dentistry in Toronto, Ont. on Thursday Dec. 14, 2006. Inundated by media images of the blindingly bright smiles of such celebrities as Jessica Simpson and Tom Cruise, more and more Canadians are looking in the mirror and realizing their own pearly whites aren't so white after all. (CP PHOTO/Frank Gunn) Canada