Gum recession is when the edge of the gum tissue that covers the teeth shrinks or recedes. When the gum recedes, it exposes more of the tooth. In severe cases, it exposes the tooth’s root as well. Once enough gum recession occurs, gaps form between the teeth and gum line that covers the tooth. These gaps or pockets provide an easy way for bacteria to build up.
While it is not a normal part of the aging process, gum recession is a common dental issue. Some are not aware they have receding gums because it usually occurs gradually.