You’ve recognized one of the most telltale signs of mid-stage gum disease. And this is not one you want to ignore. When you notice your gum and bone pulling away from your teeth, and more of the lower part of your teeth becomes visible, your gums are receding. Often referred to as shrinking gums, when this happens, the roots of your teeth become exposed to harmful bacteria and your mouth becomes susceptible to a whole host of health issues. If accompanied by red, inflamed gums that bleed when brushed, early gum disease is a likely reason. Left untreated, gum recession can have serious, irreversible consequences, such as loss of dentin (hard, dense, bony tissue forming the bulk of a tooth beneath the enamel and keeping your teeth firmly in place), and the exposed roots can become tender, sore or infected.