The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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Three-dimensional analysis of dental decompensation for skeletal Class III malocclusion on the basis of vertical skeletal patterns obtained using cone-beam computed tomography

  • Kim, Yong-Il (Department of Orthodontics, School of Dentistry, Pusan National University) ;
  • Choi, Youn-Kyung (Department of Orthodontics, School of Dentistry, Pusan National University) ;
  • Park, Soo-Byung (Department of Orthodontics, School of Dentistry, Pusan National University) ;
  • Son, Woo-Sung (Department of Orthodontics, School of Dentistry, Pusan National University) ;
  • Kim, Seong-Sik (Department of Orthodontics, School of Dentistry, Pusan National University)
  • Received : 2012.04.24
  • Accepted : 2012.08.08
  • Published : 2012.10.25
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Abstract

Objective: To evaluate the presurgical orthodontic tooth movement of mandibular teeth after dental decompensation for skeletal Class III deformities on the basis of vertical skeletal patterns. Methods: This cohort was comprised of 62 patients who received presurgical orthodontic treatment. These patients were divided into 3 groups according to their vertical skeletal patterns. Changes in the positions of the mandibular central incisor, canine, premolar, and 1st molar after presurgical orthodontic treatment were measured using a cone-beam computed tomography (CBCT) superimposition method. Results: The incisors moved forward after dental decompensation in all 3 groups. The canines in group I and the 1st premolars in groups I and III also moved forward. The incisors and canines were extruded in groups I and II. The 1st and 2nd premolars were also extruded in all groups. Vertical changes in the 1st premolars differed significantly between the groups. We also observed lateral movement of the canines in group III and of the 1st premolar, 2nd premolar, and 1st molar in all 3 groups (p < 0.05). Conclusions: Movement of the mandibular incisors and premolars resolved the dental compensation. The skeletal facial pattern did not affect the dental decompensation, except in the case of vertical changes of the 1st premolars.

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References

  1. Johnston C, Burden D, Kennedy D, Harradine N, Stevenson M. Class III surgical-orthodontic treatment: a cephalometric study. Am J Orthod Dentofacial Orthop 2006;130:300-9. https://doi.org/10.1016/j.ajodo.2005.01.023
  2. Capelozza Filho L, Martins A, Mazzotini R, da Silva Filho OG. Effects of dental decompensation on the surgical treatment of mandibular prognathism. Int J Adult Orthodon Orthognath Surg 1996;11:165-80.
  3. Jacobs JD, Sinclair PM. Principles of orthodontic mechanics in orthognathic surgery cases. Am J Orthod 1983;84:399-407. https://doi.org/10.1016/0002-9416(93)90003-P
  4. Proffit WR, Fields HW Jr, Sarver DM. Contemporary orthodontics. 4th ed. St.Louis: Mosby; 2007. p. 705-10.
  5. Wehrbein H, Bauer W, Diedrich P. Mandibular incisors, alveolar bone, and symphysis after orthodontic treatment. A retrospective study. Am J Orthod Dentofacial Orthop 1996;110:239-46. https://doi.org/10.1016/S0889-5406(96)80006-0
  6. Chung CJ, Jung S, Baik HS. Morphological characteristics of the symphyseal region in adult skeletal Class III crossbite and openbite malocclusions. Angle Orthod 2008;78:38-43. https://doi.org/10.2319/101606-427.1
  7. Ahn HW, Baek SH. Skeletal anteroposterior discrepancy and vertical type effects on lower incisor preoperative decompensation and postoperative compensation in skeletal Class III patients. Angle Orthod 2011;81:64-74. https://doi.org/10.2319/031710-158.1
  8. Nam HJ, Son WS, Park SB, Kim SS. Changes of mandibular dental arch during surgical-orthodontic treatment in skeletal class III malocclusion individuals. Korean J Orthod 2008;38:283-98. https://doi.org/10.4041/kjod.2008.38.4.283
  9. Maes F, Collignon A, Vandermeulen D, Marchal G, Suetens P. Multimodality image registration by maximization of mutual information. IEEE Trans Med Imaging 1997;16:187-98. https://doi.org/10.1109/42.563664
  10. Choi JH, Mah J. A new method for superimposition of CBCT volumes. J Clin Orthod 2010;44:303-12.
  11. Cho MY, Choi JH, Lee SP, Baek SH. Three-dimensional analysis of the tooth movement and arch dimension changes in Class I malocclusions treated with first premolar extractions: a guideline for virtual treatment planning. Am J Orthod Dentofacial Orthop 2010;138:747-57. https://doi.org/10.1016/j.ajodo.2008.11.033
  12. Proffit WR, Fields HW, Nixon WL. Occlusal forces in normal- and long-face adults. J Dent Res 1983;62:566-70. https://doi.org/10.1177/00220345830620051201
  13. Lee HK, Son WS. A study on basal and dental arch width in skeletal Class III malocclusion. Korean J Orthod 2002;32:117-27.
  14. Pandis N, Polychronopoulou A, Sifakakis I, Makou M, Eliades T. Effects of levelling of the curve of Spee on the proclination of mandibular incisors and expansion of dental arches: a prospective clinical trial. Aust Orthod J 2010;26:61-5.
  15. Bernstein RL, Preston CB, Lampasso J. Leveling the curve of Spee with a continuous archwire technique: a long term cephalometric study. Am J Orthod Dentofacial Orthop 2007;131:363-71. https://doi.org/10.1016/j.ajodo.2005.05.056
  16. Fleming PS, DiBiase AT, Sarri G, Lee RT. Comparison of mandibular arch changes during alignment and leveling with 2 preadjusted edgewise appliances. Am J Orthod Dentofacial Orthop 2009;136:340-7. https://doi.org/10.1016/j.ajodo.2007.08.030
  17. Preston CB, Maggard MB, Lampasso J, Chalabi O. Long-term effectiveness of the continuous and the sectional archwire techniques in leveling the curve of Spee. Am J Orthod Dentofacial Orthop 2008;133:550-5. https://doi.org/10.1016/j.ajodo.2006.02.039

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