This is frequently done when the patient has not had dental care for several years and there is a considerable amount of calcified deposit on the patient’s teeth. Full mouth debridement is done to remove some of the calcified deposits (both above and below the gum line). This is often followed by deep scaling and root planing with local anesthetic. There is a re-evaluation of a patient’s periodontal status a few weeks later to determine whether periodontal surgery is indicated to correct periodontal pockets and/or to provide access for regenerative bone grafting procedures.