Most orthodontists want to maintain long-term satisfactory outcomes obtained according to treatment plans. However, it is not easy to maintain it because of various variables such as treatment times, types of malocclusion, sex, and patient cooperation.

Even so, the popularization of bonded retainers has created a loophole, but if the retainer falls out or deforms, a relapse is inevitable. If this is the case, the KAO will teach guidelines in its own way to meet the fundamental question, "How long is the doctor responsible for maintaining the patient's treatment results?" However, patients will have to deepen their distrust of doctors who change frequently.

Fortunately, I have been working for a long time at a single institution, so I wants to discuss the results and maintenance of a variety of patients, based on the above variables.