re: Longest you've gone without brushing your teeth?

18 days of not truly brushing my teeth with a real toothbrush and toothpaste during SERE (Survival, Evasion, Resistance, and Escape) training. I did use scraps of paper, sticks, and other things to do the best I could in between. Since I'm normally very particular about dental hygiene, this felt very disgusting to me. Even though I had gone the same period without a true bath/shower, the first thing I did when we were done was brush my teeth. The shower came second.