Don’t be afraid: Teeth that rot also un-rot. In other words: “rotting teeth” is merely a detox symptom. One day I will post about my hygiene habits, and I will give you a sneak peek: I rarely brush my teeth, and it has been this way for over 2 years. I should have at least cavities by now, don’t ya think? ;) don’t worry about natural processes such as the decalcification and recalcification of your teeth; nature will balance it out.