A gum graft is necessary if you have gum disease. Severe Periodontal Disease, known as Periodontitis, is the more serious form of gingivitis, and if left untreated will damage gums, which could lead to tooth loss. Ocean Front Dental may suggest gum surgery for periodontal disease if your teeth and gums are separating, or receding. If you require gum surgery, you will be able to see the roots of the teeth because of gum recession. Gum recession is quite common, but according to Dr. Nick Seddon, General Dentist, should not be left untreated. Gum graft surgery helps protect teeth from gum recession, and can also improve your smile. Gum recession may also cause tooth sensitivity, and even tooth loss.