Orthodontic Bracket Slot Deformation While Torqueing in a Bracket- Archwire Segment Assembly: An FEA Study

Authors

  • Varadaraju Magesh Department of Mechanical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu 603203, Tamil Nadu, India Author
  • Pandurangan Harikrishnan Teeth”N” Jaws Center, Lake Area, Nungambakkam, Chennai-600034, Tamil Nadu, India Author
  • Shubham Dubey Department of Mechanical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu 603203, Tamil Nadu, India Author
  • Aman Kumar Department of Mechanical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu 603203, Tamil Nadu, India Author
  • Balamani Arayambath Department of Orthodontics, MGPG Institute of Dental Sciences, Pondicherry 605006, India Author

Keywords:

orthodontic brackets, arch wire, slot deformation, finite element analysis, segmental torque

Abstract

Orthodontics is a field of dentistry treating malocclusions using fixed appliances consisting of a brackets, archwires, ligatures etc. Few studies showed the tie wings and slot deformation of single orthodontic bracket-archwire assembly. The objective of this study was to analyse the slot deformation in two orthodontic brackets-archwire segments during torque.  Conventional 0.018-inch Stainless Steel (SS) and Titanium (Ti) brackets were modelled using a reverse engineering approach. Modelled brackets-archwire segment assemblies were meshed using Finite Element Analysis (FEA) software. SS archwire was torqued (twisted) from 0o to 30o with 5o increments. The brackets slot deformation in the top, middle and bottom locations of the slots were measured using FEA software. The 0.017″ × 0.025″ SS archwire with 0.018″ width Ti bracket showed the maximum deformation of 54.03 µm in the top location of slot, whereas the 0.016″ × 0.022″ SS archwire with 0.018″ SS bracket showed the minimum deformation of 21.87 µm in the top location of slot.   This in-silico study visualizes the slot deformation in a two bracket-archwire system similar to clinical situation during segmental torque.  

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Author Biography

  • Pandurangan Harikrishnan, Teeth”N” Jaws Center, Lake Area, Nungambakkam, Chennai-600034, Tamil Nadu, India

    Craniofacial Orthodontist

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Published

30-09-2025

Issue

Vol. 39 No. 3 (2025)

Section

Original Research Article

License

Copyright (c) 2025 Varadaraju Magesh, Pandurangan Harikrishnan, Shubham Dubey, Aman Kumar, Balamani Arayambath (Author)

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How to Cite

Orthodontic Bracket Slot Deformation While Torqueing in a Bracket- Archwire Segment Assembly: An FEA Study. (2025). Trends in Biomaterials and Artificial Organs, 39(3), 221-223. https://www.biomaterials.org.in/tibao/index.php/tibao/article/view/187

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