I had to go to the dentist twice in the past week to have my old silver fillings removed. Apparently my George Bush Sr.-era dental work was inadequate and had to be replaced with George Bush Jr.-era fillings, which are tooth-colored.
The sad part is, if I'm approached by a 16-year-old, I can no longer say, "Lassy, I've got fillings older than you."
UPDATE: Coincidentally, I just saw this ranking of the U.S. cities with the cleanest/dirtiest teeth. San Francisco scores okay, getting a B grade.
The second-worst city (after Lubbock, Texas) was Philadelphia! I wonder if this factors into their ugly ranking.