The gum may shrink from the white crown and show the yellow root. A graft can be placed over the root, the root covered and the shrinkage reversed. The natural shape of the teeth and gums can be restored. See before and after photos.
In other cases, the gum at the base of the tooth has eroded away and the remaining gum may collect extra food and turn red or puffy. A second type of soft tissue graft can restore this lost gum while not necessarily covering the exposed root.