An eroding gumline is a common dental problem often linked with gum disease. According to the Centers for Disease Control and Prevention (CDC), one out of every two Americans adults aged 30 or over have gum disease. If gum recession is left untreated, the supporting tissue and bone structures of the teeth can be severely damaged, and you may end up losing some of your teeth. However, many of the contributing factors to gum recession are easily preventable. Below is everything you need to know about gum recession and how to prevent it.