The effects of 3-D Screw on the nasomaxillary complex in skeletal class III malocclusion
A FEM analysis
Keywords:
finite element method, 3D screw, displacement, stress, nasomaxillary complexAbstract
Aim of the study is to evaluate the Stress distribution and displacement of various structures of nasomaxillary complex with 3- D screw in skeletal class III malocclusion. An analytical model was developed from a human skull of a 15-year-old male. CT scan images of the skull were taken in axial direction parallel to the F-H plane, which was processed using Mimics software, required portion of the skull & 3-D screw appliance was converted into geometric model using reverse engineering technique. ANSYS software was used to solve the mathematical equation. Contour plots of the displacement and stresses were obtained from the results of the analysis performed. Maximum transverse displacement was 3.18mm at the permanent first maxillary teeth. Maximum antero-posterior displacement was 1.26mm at the anterior part of zygomatic bone and 1.35mm of displacement frontozygomatic suture. maximum vertical displacement was 2.81 mm representing the inferior and medial portion of the nasal bone and indicating downward displacement. Pyramidal displacement of maxilla was evident. Apex of pyramid faced towards nasal bone and base was located on the oral side. There was downward, forward movement of maxilla with a tendency toward posterior rotation. Maximum von Mises stresses were found along midpalatal, zygomaticomaxillary, nasomaxillary, frontozygomatic sutures.
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Wang YC et al, Comparison of transverse dimensional changes in surgical skeletal class III patients with or without presurgical orthodontics. J Oral Maxillofac Surg 2010;68:1807-12.
Jacobs JD et al, Control of the transverse dimension with surgery and orthodontics. Am J Orthod 1980;77:284-306.
Haas AJ. Long-term posttreatment evaluation of rapid palatal expansion. The Angle Orthodontist. 1980 Jul;50(3):189-217
Pirelli P, Ragazzoni E, Botti F, Arcuri C, Cocchia D. A comparative light microscopic study of human midpalatal suture and periodontal ligament. Minerva Stomatol. 1997; 46(9):429–33
Wertz RA. Skeletal and dental changes accompanying rapid midpalatal suture opening. Am J Orthod Dentofacial Orthop 970; 58: 41-66.
Işeri H, Tekkaya AE, Öztan Ö, Bilgic S. Biomechanical effects of rapid maxillary expansion on the craniofacial skeleton, studied by the finite element method. Eur J Orthod 1998; 20: 347-56.
Jafari A, Shetty KS, Kumar M. Study of stress distribution and displacement of various craniofacial structures following application of transverse orthopedic forces–a three-dimensional FEM study. Angle Orthod. 2003; 73(1):12–20.
Gautam P, Valiathan A, Adhikari R. Stress and displacement patterns in the craniofacial skeleton with rapid maxillary expansion: a finite element method study. Am J Orthod Dentofacial Orthop. 2007; 132(1):5. e1-11.
Cantarella D, Dominguez-Mompell R, Moschik C, Sfogliano L, Elkenawy I, Pan HC, Mallya SM, Moon W. Zygomaticomaxillary modifications in the horizontal plane induced by micro-implantsupported skeletal expander, analyzed with CBCT images. Progress in orthodontics. 2018 Dec;19(1):41.
Chandrupatlu TR, Belegundu AD. Introduction to finite elements in engineering, Pearson Education. 3rd ed. 2004.
Zimring JF, Isaacson RJ. Forces produced by rapid maxillary expansion. Part III. Forces present during retention. Angle Orthod. 1965; 35:178–186.
Bell RA. A review of maxillary expansion in relation to rate of expansion and patients’ age. Am J Orthod Dentofac Orthop. 1982; 81:32–7.
Jain et al. Comparison and evaluation of stresses generated by rapid maxillary expansion and the implant-supported rapid maxillary expansion on the craniofacial structures using finite element method of stress analysis. Progress in Orthodontics (2017) 18:3.
Chaconas SJ, Caputo AA. Observation of orthopedic force distribution produced by maxillary orthodontic appliances. Am J Orthod Dentofacial Orthop. 1982;82:492–501.
Gardner GE, Kronman JH. Cranioskeletal displacement caused by rapid palatal expansion in the rhesus monkey. Am J Orthod. 1971;59:146–55.
Kayabasi O, Yusbasioglu E, Erzincanli F 2006 Static, dynamic and fatigue behaviour of dental implants using fi nite element method. Advances in Engineering Software 37 : 649 – 658
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