>>9451042When you have a ph below 5.5 you create an environment in your mouth that promotes the growth of acidogenic bacteria. Normally those bacteria have so much competition they cant grow enough to start causing extreme damage. When you kill off their competition they thrive and proliferate and secrete more acid on your tooth causing cavities. Acid erosion and decay are different. You can have both or just one. This is what pure acid damage looks like. Usually caused by Gastro esophageal reflux disease or bulimia.
