The korean journal of orthodontics (대한치과교정학회지)

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

DOI QR Code

Effect of bite force on orthodontic mini-implants in the molar region: Finite element analysis

  • Lee, Hyeon-Jung (Department of Orthodontics, School of Dentistry, Chonnam National University) ;
  • Lee, Kyung-Sook (Department of Orthodontics, Graduate School of Clinical Dentistry, Ewha Womans University) ;
  • Kim, Min-Ji (Department of Orthodontics, Graduate School of Clinical Dentistry, Ewha Womans University) ;
  • Chun, Youn-Sic (Department of Orthodontics, Graduate School of Clinical Dentistry, Ewha Womans University)
  • Received : 2012.12.04
  • Accepted : 2013.03.20
  • Published : 2013.10.25
Download PDF
⟨ Previous Next ⟩

Abstract

Objective: To examine the effect of bite force on the displacement and stress distribution of orthodontic mini-implants (OMIs) in the molar region according to placement site, insertion angle, and loading direction. Methods: Five finite element models were created using micro-computed tomography (microCT) images of the maxilla and mandible. OMIs were placed at one maxillary and two mandibular positions: between the maxillary second premolar and first molar, between the mandibular second premolar and first molar, and between the mandibular first and second molars. The OMIs were inserted at angles of $45^{\circ}$ and $90^{\circ}$ to the buccal surface of the cortical bone. A bite force of 25 kg was applied to the 10 occlusal contact points of the second premolar, first molar, and second molar. The loading directions were $0^{\circ}$, $5^{\circ}$, and $10^{\circ}$ to the long axis of the tooth. Results: With regard to placement site, the displacement and stress were greatest for the OMI placed between the mandibular first molar and second molar, and smallest for the OMI placed between the maxillary second premolar and first molar. In the mandibular molar region, the angled OMI showed slightly less displacement than the OMI placed at $90^{\circ}$. The maximum Von Mises stress increased with the inclination of the loading direction. Conclusions: These results suggest that placement of OMIs between the second premolar and first molar at $45^{\circ}$ to the cortical bone reduces the effect of bite force on OMIs.

Keywords

References

  1. Kanomi R. Mini-implant for orthodontic anchorage. J Clin Orthod 1997;31:763-7.
  2. Bae SM, Park HS, Kyung HM, Kwon OW, Sung JH. Clinical application of micro-implant anchorage. J Clin Orthod 2002;36:298-302.
  3. Miyawaki S, Koyama I, Inoue M, Mishima K, Sugahara T, Takano-Yamamoto T. Factors associated with the stability of titanium screws placed in the posterior region for orthodontic anchorage. Am J Orthod Dentofacial Orthop 2003;124:373-8. https://doi.org/10.1016/S0889-5406(03)00565-1
  4. Cheng SJ, Tseng IY, Lee JJ, Kok SH. A prospective study of the risk factors associated with failure of mini-implants used for orthodontic anchorage. Int J Oral Maxillofac Implants 2004;19:100-6.
  5. Lim HJ, Eun CS, Cho JH, Lee KH, Hwang HS. Factors associated with initial stability of miniscrews for orthodontic treatment. Am J Orthod Dentofacial Orthop 2009;136:236-42. https://doi.org/10.1016/j.ajodo.2007.07.030
  6. Kuroda S, Sugawara Y, Deguchi T, Kyung HM, Takano-Yamamoto T. Clinical use of miniscrew implants as orthodontic anchorage: success rates and postoperative discomfort. Am J Orthod Dentofacial Orthop 2007;131:9-15. https://doi.org/10.1016/j.ajodo.2005.02.032
  7. Deguchi T, Takano-Yamamoto T, Kanomi R, Hartsfield JK Jr, Roberts WE, Garetto LP. The use of small titanium screws for orthodontic anchorage. J Dent Res 2003;82:377-81. https://doi.org/10.1177/154405910308200510
  8. 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
  9. Motoyoshi M, Yoshida T, Ono A, Shimizu N. Effect of cortical bone thickness and implant placement torque on stability of orthodontic mini-implants. Int J Oral Maxillofac Implants 2007;22:779-84.
  10. Kuroda S, Yamada K, Deguchi T, Hashimoto T, Kyung HM, Takano-Yamamoto T. Root proximity is a major factor for screw failure in orthodontic anchorage. Am J Orthod Dentofacial Orthop 2007; 131:S68-73. https://doi.org/10.1016/j.ajodo.2006.06.017
  11. Cattaneo PM, Dalstra M, Melsen B. The transfer of occlusal forces through the maxillary molars: a finite element study. Am J Orthod Dentofacial Orthop 2003;123:367-73. https://doi.org/10.1067/mod.2003.73
  12. Tanne K, Sakuda M, Burstone CJ. Three-dimensional finite element analysis for stress in the periodontal tissue by orthodontic forces. Am J Orthod Dentofacial Orthop 1987;92:499-505. https://doi.org/10.1016/0889-5406(87)90232-0
  13. Miyaura K, Morita M, Matsuka Y, Yamashita A, Watanabe T. Rehabilitation of biting abilities in patients with different types of dental prostheses. J Oral Rehabil 2000;27:1073-6. https://doi.org/10.1046/j.1365-2842.2000.00620.x
  14. Molly L. Bone density and primary stability in implant therapy. Clin Oral Implants Res 2006;17(Suppl 2):124-35.
  15. Javed F, Romanos GE. The role of primary stability for successful immediate loading of dental implants. A literature review. J Dent 2010;38:612-20. https://doi.org/10.1016/j.jdent.2010.05.013
  16. Provatidis CG. A comparative FEM-study of tooth mobility using isotropic and anisotropic models of the periodontal ligament. Finite Element Method. Med Eng Phys 2000;22:359-70. https://doi.org/10.1016/S1350-4533(00)00055-2
  17. Qian H, Chen J, Katona TR. The influence of PDL principal fibers in a 3-dimensional analysis of orthodontic tooth movement. Am J Orthod Dentofacial Orthop 2001;120:272-9. https://doi.org/10.1067/mod.2001.116085
  18. Toms SR, Eberhardt AW. A nonlinear finite element analysis of the periodontal ligament under orthodontic tooth loading. Am J Orthod Dentofacial Orthop 2003;123:657-65. https://doi.org/10.1016/S0889-5406(03)00164-1
  19. Farnsworth D, Rossouw PE, Ceen RF, Buschang PH. Cortical bone thickness at common miniscrew implant placement sites. Am J Orthod Dentofacial Orthop 2011;139:495-503. https://doi.org/10.1016/j.ajodo.2009.03.057
  20. Motoyoshi M, Ueno S, Okazaki K, Shimizu N. Bone stress for a mini-implant close to the roots of adjacent teeth- 3D finite element analysis. Int J Oral Maxillofac Surg 2009;38:363-8. https://doi.org/10.1016/j.ijom.2009.02.011
  21. Meredith N. Assessment of implant stability as a prognostic determinant. Int J Prosthodont 1998;11: 491-501.
  22. Byoun NY, Nam EH, Yoon YA, Kim IK. Three-dimensional finite element analysis for stress distribution on the diameter of orthodontic mini-implants and insertion angle to the bone surface. Korean J Orthod 2006;36:178-87.
  23. Lee NK, Choi DS, Jang IS, Cha BK. Factors influencing primary stability of miniplate anchorage: a three-dimensional finite element analysis. Korean J Orthod 2008;38:304-13. https://doi.org/10.4041/kjod.2008.38.5.304
  24. Sugiura T, Horiuchi K, Sugimura M, Tsutsumi S. Evaluation of threshold stress for bone resorption around screws based on in vivo strain measurement of miniplate. J Musculoskelet Neuronal Interact 2000;1:165-70.
  25. Li J, Li H, Shi L, Fok AS, Ucer C, Devlin H, et al. A mathematical model for simulating the bone remodeling process under mechanical stimulus. Dent Mater 2007;23:1073-8. https://doi.org/10.1016/j.dental.2006.10.004
  26. Canabarro Sde A, Shinkai RS. Medial mandibular flexure and maximum occlusal force in dentate adults. Int J Prosthodont 2006;19:177-82.
  27. Goodkind RJ, Heringlake CB. Mandibular flexure in opening and closing movements. J Prosthet Dent 1973;30:134-8. https://doi.org/10.1016/0022-3913(73)90046-2
  28. Korioth TW, Hannam AG. Deformation of the human mandible during simulated tooth clenching. J Dent Res 1994;73:56-66. https://doi.org/10.1177/00220345940730010801
  29. Yoon HJ, Lim YK, Lee DY, Jo YS. Three-dimensional finite element analysis on the effect of maxillary incisor torque. Korean J Orthod 2005;35:137-47.

Cited by

  1. Orthodontic skeletal anchorage: Up-to-date review vol.76, pp.3, 2013, https://doi.org/10.1016/j.odw.2017.06.002