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Kee-Joon Lee, Sung-Jin Kim  Seminars in Orthodontics 

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Presentation on theme: "Kee-Joon Lee, Sung-Jin Kim  Seminars in Orthodontics "— Presentation transcript:

1 Advanced biomechanics for total arch movement and non-surgical treatment for hyperdivergent faces 
Kee-Joon Lee, Sung-Jin Kim  Seminars in Orthodontics  Volume 24, Issue 1, Pages (March 2018) DOI: /j.sodo Copyright © 2018 Elsevier Inc. Terms and Conditions

2 Figure 1 Defining the target segment. (A) Single force application to incisor segment; (B) single force application to the whole arch; and (C) single force causing clockwise rotation of posterior segment (Cresα: center of resistance of anterior segment, Cresβ: center of resistance of posterior segment, CresT: center of resistance of total arch). Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

3 Figure 2 Pendulum appliance and resultant force system. (A) Before installation of appliance; (B) after activation; and (C) resultant distal tipping of the molar. Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

4 Figure 3 Simulation of arch displacement using finite element.13 (A) Force application to the continuous archwire and (B) force application to the long lever arm. Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

5 Figure 4 Estimated center of resistance in the non-extraction model.
Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

6 Figure 5 Arbitrary movement of total arch and relevant force vector. (A) Total arch distalization; (B) total arch intrusion; and (C) total arch rotation. Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

7 Figure 6 Initial intraoral view: initial diagnostic model and final intraoral view. Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

8 Figure 7 Force system involving linear vectors for effective rotation of occlusal plane. Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

9 Figure 8 Cephalometric superimposition showing conversion from full Class II to Class I and the pattern of occlusal plane rotation. Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

10 Figure 9 Difference between total arch distalization and intrusion. Position of interradicular miniscrew is more important in case of total arch intrusion. Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

11 Figure 10 Intraoral photographs: initial, during treatment and final.
Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

12 Figure 11 Extraoral photographs: initial and final.
Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

13 Figure 12 Cephalometric superimposition.
Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

14 Figure 13 Intraoral photographs: initial, during treatment and final.
Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

15 Figure 14 Extraoral photographs: initial and final.
Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions

16 Figure 15 Cephalometric superimposition.
Seminars in Orthodontics  , 83-94DOI: ( /j.sodo ) Copyright © 2018 Elsevier Inc. Terms and Conditions


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