It is important to treat Receded Gums immediately as the gums act as a support structure for the tooth. With enough rececession, teeth will can eventually fall out. (HealtySmileForum)

If your gums have receded, it is sometimes possible to graft tissue to cover a portion of the exposed root surface and to reinforce the fragile, receding gum tissue to protect from further recession. Also common to receded gums is sensitivity that results from the exposed root surface. (California Dental Association)

For those with severely receded gums, a graft from another part of the mouth may be the only option for treatment. (WiseGEEK)