Found out today that I have two fresh cavities, and I'm feeling my own mortality a bit. The last time I had a couple of bad teeth was about 15 years ago, after my freshman year of college. Nine months of binge drinking, Creamery ice cream and poor hygiene corrupted two back molars on the right side of my face. I felt totally irresponsible and I re-upped my dental-care habits after that. I remember the dentist warning me then about the potential for other teeth to go the same route. In the decade-and-a-half since, other docs (yeah, the joy of managed care has forced me to hop around for toof'care) have flagged a couple of trouble spots, but they said I could hold off full-blown cavities for a long time if I took care of business. No longer -- a left-side back molar and a right-side inner molar both have distinct lil' brown areas in 'em now. It's no big deal. But why would a couple of minor cavities leave me feeling slightly creaky? It's like this: Those bad spots were a long, slow time in the making. What the hell else could be on its way? I'm not a hypochondriac by any means, and I'll probably forget this feeling after I get my fillings. But for now, the march of time is loud in my head. Whoo-hoo!