SpeakerDr. Jeong-il Kim
Lectures 13
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12. Retention Phase Treatment

After removing all orthodontic appliances, the retention period should be considered as 

an extension of treatment. It is also necessary to understand what caused all

malocclusion and to create different types of retention devices for each patient, not for

the conventional form.

For example, in the case of open bite and class III malocclusion, a maintenance device

will be needed to control extrusion of maxillary first molar, and in the case of anterior 

crowding, space, class Il malocclusion, deep bite, and reverse occlusion; it is desirable 

to design the maintenance device to prevent relapse.

It is important to achieve satisfactory results not only for patients but also for doctors

through understanding of tooth root resorption and decalcification, which are the side

effects that can occur after orthodontic treatment.

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1. Retention Phase Treatment 1) Introduction: Basic rules
2) Retention phase treatment
3) Appliance removal
4) Retainer types
5) Timing of retention
2. When to Debond! 1) Six keys to normal occlusion
2) Overcorrection
3) Magic triangle
3. ABO Objective Grading System 1) ABO Objective Grading System: Eight criteria
4. Retention after Crowding Treatment 1) Retention after upper anterior crowding
2) Retention after lower anterior crowding
3) Spring retainer
4) Post-treatment lower anterior crowding
5. Retention after Space Treatment 1) Retention after upper anterior space
2) Retention after lower anterior space
3) Tongue thrusting habit
6. Retention after Class II Treatment 1) Factors affecting Class II post-treatment stability
2) Retention of the upper arch after Class II treatment
3) Retention of the lower arch after Class II treatment
7. Retention after Class III Treatment 1) Factors affecting Class III post-treatment stability
2) Retention of the upper arch after Class III treatment
3) Retention of the lower arch after Class III treatment
8. Retention after deep bite Treatment 1) Factors affecting deep overbite post-treatment stability
2) Retention of the upper arch after deep overbite treatment
3) Retention of the lower arch after deep overbite treatment
9. Retention after open bite Treatment 1) Factors affecting open bite post-treatment stability
2) Retention of the upper arch after open bite treatment
3) Retention of the lower arch after open bite treatment
10. Retention after Posterior Cross-bite Treatment 1) Factors affecting posterior cross bite post-treatment stability
2) Retention of the upper arch after posterior cross bite treatment
3) Retention of the lower arch after posterior cross bite treatment
11. Root Resorption (Part 1) 1) Root resorption: Introduction
2) Type and prevalence of root resorption
3) Etiology of root resorption
12. Root Resorption (Part 2) 1) Etiologic factors
2) Dental anomalies of root resorption
3) Repair process
13. Decalcification 1) Decalcification vs dental caries
2) White spot lesion treatment
3) Clinical guidelines
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