Earlier quoted context omitted.
Same here, the joy of a good Marseille soap (I'm in France). It lasts at least 3 months for showers, washing hands, and everything (hair as well) I heard some people wash their teeth with soap, I'm not there yet :))
When I was a young kid we were out of toothpaste and some adult suggested using soap. I remember it wasn't very nice, but that's all. For the sake of science, I just repeated that, so as taught in school, the scientific method. experiment: brushing teeth with soap instead of toothpaste. apparatus: toothbrush, soap (sainsbury's cheapo), teeth, darwin-award level of stupidity. result: surprisingly inoffensive. Almost n…
Most of the cleaning comes from the action of the brush on your teeth which physically removes bacterias, leftover food, &c.