Gingiva, or gum tissue, is the body's natural defense against bacteria and trauma in the mouth. Recession usually occur when the gingiva is thin and substained damage from pathologic inflammation or aggressive toothbrushing habit. Soft roots are often exposed from receding gingiva, predisposing the patient to further recessions, root decays, sensitivity, and the youthful smile gives way to the appearance of long teeth associated with old age.