"Look ma, no cavities!" Remember that ad slogan (named by Advertising Age as one of the most memorable of the 20th century)? Crest put fluoride into toothpaste and presto, no more cavities.
Well, fluoride came too late for me and my teeth. Not long ago, a young relative noticed my mouth full of metal (while I was laughing out loud, of course) and asked what it was all about.
I explained that, in the brief period after dinosaurs ruled the earth and before American Idol ruled the airwaves, the technology for sealing teeth and keeping them healthy hadn't yet been invented.
Instead, when a tooth broke (try explaining cavities to a 4 year old), the dentist would fill the hole with metal. Put that way, the process sounds medieval, doesn't it?
She took one last look, nodded that she understood, and that was the end of that. I bet she brushed extra long that night!