Title
Comparison of slot wall deformation in conventional and self-ligating brackets during torque with TMA wire - A finite element analysis
Authors
C. Keerthana*, P. Siri Krishna, Pavan Kumar, Manjunath Hegde & C. Chaitra
Affiliation
Department of Orthodontics and Dentofacial Orthopedics, Bangalore Institute of Dental Sciences, Bengaluru, Karnataka, India; *Corresponding author
C. Keerthana - E-mail: drkeerthanaaa@gmail.com; Phone: +91 9586987967
P.Siri Krishna - E-mail: sirykrish@yahoo.com; Phone: +91 8835635866
Pavan Kumar - E-mail: k.pavan.k147@gmail.com; Phone: +91 7756835467
Manjunath Hegde - E-mail: 21.hegde@gmail.com; Phone: +91 9023567895
C. Chaitra - E-mail: drchaitracortho@gmail.com; Phone: +91 7014089756
Article Type
Research Article
Date
Received April 1, 2026; Revised April 30, 2026; Accepted April 30, 2026, Published April 30, 2026
Abstract
Slot wall deformation occurs when twisting of the wire is increased. Therefore, it is of interest to evaluate deformation in conventional, active and passive self-ligating stainless steel and ceramic brackets with 0.019 X 0.025inch TMA wire. Deformation of slot wall with TMA wire was least in ceramic passive self- ligating bracket ranging from 0.02 to 0.50 mm and highest in Stainless steel conventional bracket ranging from 0.097 to 2.04 mm. Sequence of brackets from least to high slot wall deformation is Ceramic Passive Self-ligating bracket, Ceramic Active Self-ligating bracket, Stainless steel Passive Self-ligating bracket, Ceramic conventional bracket, Stainless steel Active Self-ligating bracket and Stainless-steel conventional bracket. Thus, elastic deformation of stainless-steel bracket slot was more than ceramic bracket slot.
Keywords
Torque; titanium molybdenum alloy (TMA) wire; slot wall deformation; FEM; self-ligating bracket; ceramic bracket
Citation
Keerthana et al. Bioinformation 22(4): 2122-2128 (2026)
Edited by
Neelam Goyal & Shruti Dabi
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
