Related Experiment Video
Updated: Aug 24, 2026

Force System with Vertical V-Bends: A 3D In Vitro Assessment of Elastic and Rigid Rectangular Archwires
Published on: July 24, 2018
Dynamic analysis for clarifying occlusal force transmission during orthodontic archwire application: difference
K Iramaneerat1, M Hisano, K Soma
1Orthodontic Science, Department of Orofacial Development and Function, Division of Oral Health Science, Graduate School, Tokyo Medical and Dental University, Japan.
Abstract:
The purpose of our study was to utilize the dynamic finite element analysis to clarify the difference between Improved Super-elastic Ti-Ni alloy Wire (ISW) and Stainless Steel Wire (SSW) on occlusal force transmission during orthodontic treatment. ABAQUS/Standard was used to analyze three finite models over a 30-ms period: ISW, SSW, and wireless models; which consisting of premolar, molar, periodontal ligament (PDL), and alveolar bone. Wire model was established by beam element. A Joint C, which exhibits viscoelasticity to buffer occlusal force, was applied between the wire and bracket. The load was applied on the occlusal surface. At load withdrawal point, the average amounts of von Mises stress on PDL in three models were of the same value. However as time progressed, the stress in wireless model became higher than ISW and SSW models. In contrast, as time progressed further, the stress in SSW model became higher than the other two models and maintained its higher level until the end of analysis. Results showed that high damping capacity of ISW had an ability to buffer the transmission of occlusal force to the PDL. Besides, the dynamic analysis demonstrated an advantage to investigate the stress alterative response between models versus time period.
Related Concept Videos
Mechanical Characteristics of Steel
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used to...
Thin-Walled Hollow Shafts
Design of Transmission Shafts - Stress Analysis
Stress: General Loading Conditions
The shearing force, possessing potential directionality within the plane of the section, is simplified into two component forces running parallel to the x and y axes.
Stress on an Oblique Plane
Thermal expansion and Thermal stress: Problem Solving
To solve the problem, first, identify the known and unknown quantities. The initial length (L) of the bridge is 1275 m, the coefficient of linear expansion (α) for steel is 12 x 10-6/°C, and the change in temperature (ΔT) is 55 °C.

