The goal of maintenance is to minimize the recurrence and progression of periodontal disease in patients treated for periodontal disease. To reach this end an appropriate time schedule must be determined that will allow for early detection of poor oral hygiene and continued periodontal breakdown. The appointments must review the patient's medical and dental history, periodic radiographic review, extra and inter oral exam, plaque control effectiveness of the patient, removal of etiological components from sulcular or pocket areas, continued scaling and root planing as needed, and supra gingival polishing. The American Academy of Periodontology has outlined parameters of care for supportive periodontal treatment (maintenance) and lists what should be recorded for the periodonic examination: