When there is only minor recession, some healthy gingiva often remains and protects the tooth, so that no treatment other than modifying home care practices is necessary. However, when recession reaches the mucosa, the first line of defense against bacterial penetration is lost.
Gum recession often results in root sensitivity to hot and cold foods as well as an unsightly appearance of the gum and tooth. When significant, gum recession can predispose to worsening recession and expose the root surface, which is softer than enamel, leading to root caries and root gouging.
One method to correct this is gum grafting. Gum grafts can be used to cover roots or develop gum tissue where absent due to excessive gingival recession. During gum graft surgery, your periodontist takes gum tissue from your palate or another donor source to cover the exposed root.