SpeakerDr. Jeong-il Kim
Lectures 15
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9. Finishing Procedures (Part 1)

The finishing stage is one of the most difficult steps in orthodontic treatment.  

First, we need to evaluate the skeleton and teeth in three dimensional planes. 

When deciding whether to move teeth or bones, it is necessary to understand them.

MEAW has L-loops in between adjacent posterior teeth. It lowers the load deflection rate (LDR), 

which not only applies weak force to the teeth, but also separates them from adjacent teeth, 

enabling individual tooth movement.

Before making these MEAWs, it is important to understand how to prescribe MEAWs, 

and to compare and understand the biomechanics of MEAW and NiTi archwire. 

The MEAW can maximize the orthodontic effect by giving various torques depending on the cases. 

In addition, the factors to be considered when making MEAW are explained. 

Additionally, MEAW may be used in SWA devices. An understanding of 

the adjustment of the MEAW is explained when using SWA devices.

Also, low angle deep bite treatment requires molar extrusion and anterior teeth intrusion. 

However, due to strong masticatory muscles, it can be difficult to extrude molars. 

To this end, by using reverse MEAW, in which the L-loop is facing the opposite direction, 

molar extrusion and anterior teeth intrusion can be implemented successfully.

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1. How to Finish the Malocclusion 1) Exptected tooth movement during finishing stage
2) 3-dimensional tooth movement during finishing
3) Tooth movement in the dentition
2. The Vertical and the Horizontal Components of the Loops 1) Basic L-loop
2) Open loop vs closed loop
3) Vertical tooth movement
4) Horizontal tooth movement
5) Midline deviation treatment
3. Load-Deflection Rate (LDR) in MEAW 1) LDR: low vs high
2) Five major parameters for varying LDR
3) LDR in MEAW
4. Orthodontic Normal Occlusion 1) Orthodontic normal occlusion and normal occlusion
2) Orthodontic normal occlusion
5. 1st-. 2nd-, and 3rd- Order Bends in MEAW 1) First-order bends
2) Second-order bends
3) Third-order bends
4) Orthodontic force system
6. Three Dimensional Control in MEAW 1) First-order bends in finishing
2) Second-order bends in finishing
3) Third-order bends in finishing
7. MEAW Prescription 1) MEAW prescription to lab
2) Requsite of MEAW prescription: Ceph., panorama and model
3) Checkpoints in MEAW prescription
8. MEAW vs. NiTi 1) LDR
2) Rotation center
3) Transverse movement
4) Advantages of MEAW
9. MEAW Fabrication (Part 1): Lower MEAW 1) Anterior torque: crown lingual torque
2) Marking and loop position
3) Lower MEAW fabrication
10. MEAW Fabrication (Part 2): Upper MEAW 1) Anterior torque: crown labial torque
2) Canine guidance
3) Marking and loop position
4) Upper MEAW fabrication
11. MEAW Fabrication (Part 3): MEAW for the Extraction Cases 1) Upper anterior torque in MEAW fabrication
2) Loop position: existing extraction space
3) Crown lingual inclination in the posterior teeth
12. MEAW Fabrication (Part 4): MEAW Adjustment after MEAW Fabrication 1) Sequnces of MEAW adjustments
2) First-order bends control in MEAW
3) Third-order bends control in MEAW
4) Second-order bends control in MEAW
13. Torque in MEAW 1) Upper anterior torque in upper MEAW
2) Upper posterior torque in upper MEAW
3) Lower anterior torque in lower MEAW
4) Lower posterior torque in lower MEAW
5) Check and measuring torque
14. MEAW in SWA 1) Use of MEAW in SWA
2) MEAW adjustment in SWA
15. Reverse MEAW 1) Ordinary MEAW vs reverse MEAW
2) Indications of reverse MEAW
3) Fabrication of reverse MEAW
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