The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
권호 표지
DOI QR코드

DOI QR Code

Treatment effects of mandibular total arch distalization using a ramal plate

  • Yu, Jonghan (Department of Orthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea) ;
  • Park, Jae Hyun (Postgraduate Orthodontic Program, Arizona School of Dentistry & Oral Health, A.T. Still University) ;
  • Bayome, Mohamed (Department of Dentistry, Graduate School, The Catholic University of Korea) ;
  • Kim, Sungkon (Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea) ;
  • Kook, Yoon-Ah (Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea) ;
  • Kim, Yoonji (Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea) ;
  • Kim, Chang-Hyen (Department of Oral and Maxillofacial Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea)
  • Received : 2015.08.14
  • Accepted : 2016.01.19
  • Published : 2016.07.25
Download PDF
⟨ Previous Next ⟩

Abstract

Objective: The purpose of this study was to evaluate treatment effects after distalization of the mandibular dentition using ramal plates through lateral cephalograms. Methods: Pre- and post-treatment lateral cephalograms and dental casts of 22 adult patients (11 males and 11 females; mean age, $23.9{\pm}5.52years$) who received ramal plates for mandibular molar distalization were analyzed. The treatment effects and amount of distalization of the mandibular molars were calculated and tested for statistical significance. The significance level was set at p < 0.001. Results: The mandibular first molar distalization at the crown and root were 2.10 mm (p < 0.001) and 0.81 mm (p = 0.011), respectively. In the evaluation of skeletal variables, there was a significant increase in the Wits appraisal (p < 0.001). In the evaluation of the soft tissue, there was no significant effect on upper lip position, but the lower lips showed a significant retraction of 2.2 mm (p < 0.001). Conclusions: The mandibular molars showed a significant amount of distalization accompanied by limited extrusion and mesiobuccal rotation of the crowns. A ramal plate may be a viable device for mandibular total arch distalization in Class III patients who are reluctant to undergo orthognathic surgery.

Keywords

References

  1. Kim YH, Han UK, Lim DD, Serraon ML. Stability of anterior openbite correction with multiloop edgewise archwire therapy: A cephalometric follow-up study. Am J Orthod Dentofacial Orthop 2000;118:43-54. https://doi.org/10.1067/mod.2000.104830
  2. Janson G, de Souza JE, Alves Fde A, Andrade P Jr, Nakamura A, de Freitas MR, et al. Extreme dentoalveolar compensation in the treatment of Class III malocclusion. Am J Orthod Dentofacial Orthop 2005;128:787-94. https://doi.org/10.1016/j.ajodo.2004.08.018
  3. Saito I, Yamaki M, Hanada K. Nonsurgical treatment of adult open bite using edgewise appliance combined with high-pull headgear and class III elastics. Angle Orthod 2005;75:277-83.
  4. Byloff F, Darendeliler MA, Stoff F. Mandibular molar distalization with the Franzulum Appliance. J Clin Orthod 2000;34:518-23.
  5. Celentano G, Longobardi A, Cannavale R, Perillo L. Mandibular lip bumper for molar torque control. Prog Orthod 2011;12:90-2. https://doi.org/10.1016/j.pio.2011.02.009
  6. Kinzinger G, Gross U, Diedrich P. Fixed lingual arch appliance for compliance-free unilateral molar distalization in the mandible. Three case studies. J Orofac Orthop 2000;61:440-50. https://doi.org/10.1007/PL00001912
  7. O'Donnell S, Nanda RS, Ghosh J. Perioral forces and dental changes resulting from mandibular lip bumper treatment. Am J Orthod Dentofacial Orthop 1998;113:247-55. https://doi.org/10.1016/S0889-5406(98)70293-8
  8. Muse DS, Fillman MJ, Emmerson WJ, Mitchell RD. Molar and incisor changes with Wilson rapid molar distalization. Am J Orthod Dentofacial Orthop 1993;104:556-65. https://doi.org/10.1016/S0889-5406(05)80439-1
  9. Chung KR, Ahn HW, Kim SJ, Lee KB, Kim SH. Correction of collapsed occlusion with degenerative joint disease focused on the mandibular arch and timely relocation of a miniplate. Am J Orthod Dentofacial Orthop 2012;141:e53-63. https://doi.org/10.1016/j.ajodo.2011.05.024
  10. Jing Y, Han X, Guo Y, Li J, Bai D. Nonsurgical correction of a Class III malocclusion in an adult by miniscrew-assisted mandibular dentition distalization. Am J Orthod Dentofacial Orthop 2013;143:877-87. https://doi.org/10.1016/j.ajodo.2012.05.021
  11. Poletti L, Silvera AA, Ghislanzoni LT. Dentoalveolar class III treatment using retromolar miniscrew anchorage. Prog Orthod 2013;14:7. https://doi.org/10.1186/2196-1042-14-7
  12. Sugawara J, Daimaruya T, Umemori M, Nagasaka H, Takahashi I, Kawamura H, et al. Distal movement of mandibular molars in adult patients with the skeletal anchorage system. Am J Orthod Dentofacial Orthop 2004;125:130-8. https://doi.org/10.1016/j.ajodo.2003.02.003
  13. Sugawara Y, Kuroda S, Tamamura N, Takano-Yamamoto T. Adult patient with mandibular protrusion and unstable occlusion treated with titanium screw anchorage. Am J Orthod Dentofacial Orthop 2008;133:102-11. https://doi.org/10.1016/j.ajodo.2006.06.020
  14. Kook YA, Park JH, Bayome M, Kim S, Han E, Kim CH. Distalization of the mandibular dentition with a ramal plate for skeletal Class III malocclusion correction. Am J Orthod Dentofacial Orthop 2016. In press.
  15. Ryu H, Chong HJ, An KY, Kang K. Short-term and long-term treatment outcomes with Class III activator. Korean J Orthod 2015;45:226-35. https://doi.org/10.4041/kjod.2015.45.5.226
  16. Sun HY, Lee SJ, Park HS. Use of mini-implants to avoid maxillary surgery for Class III mandibular prognathic patient: a long-term post-retention case. Korean J Orthod 2014;44:342-9. https://doi.org/10.4041/kjod.2014.44.6.342
  17. Park J, Cho HJ. Three-dimensional evaluation of interradicular spaces and cortical bone thickness for the placement and initial stability of microimplants in adults. Am J Orthod Dentofacial Orthop 2009;136:314.e1-12.
  18. Poggio PM, Incorvati C, Velo S, Carano A. "Safe zones": a guide for miniscrew positioning in the maxillary and mandibular arch. Angle Orthod 2006;76:191-7.
  19. Ludwig B, Glasl B, Kinzinger GS, Lietz T, Lisson JA. Anatomical guidelines for miniscrew insertion: Vestibular interradicular sites. J Clin Orthod 2011;45:165-73.
  20. Chang C, Liu SS, Roberts WE. Primary failure rate for 1680 extra-alveolar mandibular buccal shelf mini-screws placed in movable mucosa or attached gingiva. Angle Orthod 2015;85:905-10. https://doi.org/10.2319/092714.695.1
  21. Chen YJ, Chang HH, Huang CY, Hung HC, Lai EH, Yao CC. A retrospective analysis of the failure rate of three different orthodontic skeletal anchorage systems. Clin Oral Implants Res 2007;18:768-75. https://doi.org/10.1111/j.1600-0501.2007.01405.x
  22. Schatzle M, Mannchen R, Zwahlen M, Lang NP. Survival and failure rates of orthodontic temporary anchorage devices: a systematic review. Clin Oral Implants Res 2009;20:1351-9. https://doi.org/10.1111/j.1600-0501.2009.01754.x
  23. Park HS, Lee SK, Kwon OW. Group distal movement of teeth using microscrew implant anchorage. Angle Orthod 2005;75:602-9.
  24. Oh YH, Park HS, Kwon TG. Treatment effects of microimplant-aided sliding mechanics on distal retraction of posterior teeth. Am J Orthod Dentofacial Orthop 2011;139:470-81. https://doi.org/10.1016/j.ajodo.2009.05.037
  25. Ye C, Zhihe Z, Zhao Q, Ye J. Treatment effects of distal movement of lower arch with miniscrews in the retromolar area compared with miniscrews in the posterior area of the maxillary. J Craniofac Surg 2013;24:1974-9. https://doi.org/10.1097/SCS.0b013e3182a248ae
  26. Baumrind S, Frantz RC. The reliability of head film measurements. 1. Landmark identification. Am J Orthod 1971;60:111-27. https://doi.org/10.1016/0002-9416(71)90028-5
  27. Ahlqvist J, Eliasson S, Welander U. The cephalometric projection. Part II. Principles of image distortion in cephalography. Dentomaxillofac Radiol 1983;12:101-8. https://doi.org/10.1259/dmfr.1983.0017
  28. Bilecenoglu B, Tuncer N. Clinical and anatomical study of retromolar foramen and canal. J Oral Maxillofac Surg 2006;64:1493-7. https://doi.org/10.1016/j.joms.2006.05.043
  29. Rossi AC, Freire AR, Prado GB, Prado FB, Botacin PR, Caria PHF. Incidence of retromolar foramen in human mandibles: ethnic and clinical aspects. Int J Morphol 2012;30:1074-8. https://doi.org/10.4067/S0717-95022012000300051
  30. von Arx T, Hanni A, Sendi P, Buser D, Bornstein MM. Radiographic study of the mandibular retromolar canal: an anatomic structure with clinical importance. J Endod 2011;37:1630-5. https://doi.org/10.1016/j.joen.2011.09.007

Cited by

  1. Miniplate-Aided Mandibular Dentition Distalization as a Camouflage Treatment of a Class III Malocclusion in an Adult vol.2018, pp.None, 2016, https://doi.org/10.1155/2018/3542792
  2. Bone availability for mandibular molar distalization in adults with mandibular prognathism vol.88, pp.1, 2016, https://doi.org/10.2319/040617-237.1
  3. Displacement of mandibular dentition during total arch distalization according to locations and types of TSADs: 3D Finite element analysis vol.22, pp.1, 2016, https://doi.org/10.1111/ocr.12256
  4. Biomechanical analysis for total distalization of the mandibular dentition: A finite element study vol.155, pp.3, 2016, https://doi.org/10.1016/j.ajodo.2018.05.014
  5. Quantitative evaluation of retromolar space in adults with different vertical facial types: vol.90, pp.6, 2016, https://doi.org/10.2319/121219-787.1
  6. Mandibular skeletal posterior anatomic limit for molar distalization in patients with Class III malocclusion with different vertical facial patterns vol.51, pp.4, 2016, https://doi.org/10.4041/kjod.2021.51.4.250