Gum grafting is a surgical procedure 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. This can be done for one tooth or several teeth to even your gum line and reduce sensitivity. A gum graft can reduce further recession and bone loss. In some cases, it can cover exposed roots to protect them from decay. This may reduce tooth sensitivity and improve esthetics of your smile.