The Taiwan Academy of Periodontology has developed the following parameters for periodontal and peri-implant maintenance. Maintenance therapy is an integral part of periodontal and implant therapy when patients have a history of inflammatory periodontal disease. Patients should be informed of the disease process, therapeutic alternatives should be outlined, potential complications should be discussed and the expected results need to be indicated; the patients also need to be informed about their responsibilities in terms of periodontal and implant treatment. Finally, the consequences to the patient of not undergoing treatment should be explained. Failure of the patient to comply with a periodontal and implant maintenance program may result in recurrence or progression of periodontal and peri-implant disease. If the patient has knowledge of the above, they should be able to make informed decisions regarding their periodontal and implant therapy.