Related Experiment Video
Updated: Aug 5, 2026
08:46
Force System with Vertical V-Bends: A 3D In Vitro Assessment of Elastic and Rigid Rectangular Archwires
Published on: July 24, 2018
Assessment of the Forces Developed During Orthodontic Treatment Using the Finite Element Method
Maria Manuela Nardin1, Mihaela-Roxana Brătoiu1, Cristina Teodora Preoteasa2
1Department of Prosthodontics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania.
Dentistry Journal
|July 27, 2026
Summary
This study analyzed nickel-titanium archwire forces in orthodontic systems. Larger archwire diameters generated higher forces, stress, and deformation, influencing the dento-maxillary system (DMS).
Area of Science:
- Biomaterials Science
- Orthodontics
- Biomechanics
Background:
- Investigated biomechanical behavior of fixed orthodontic systems.
- Analyzed forces from nickel-titanium (Ni-Ti) archwires on the dento-maxillary system (DMS).
Purpose of the Study:
- Estimate force levels for 0.012″, 0.014″, and 0.016″ Ni-Ti archwires.
- Evaluate stress distribution, displacement, and deformation.
- Assess the impact of dental malpositions on force transmission.
Main Methods:
- Developed a 3D patient-specific finite element analysis (FEM) model of the DMS.
- Determined orthodontic forces analytically based on archwire deformation.
- Applied forces as equivalent systems at the bracket level, assuming linear elastic behavior and no friction.
Main Results:
- A direct relationship exists between archwire diameter and force magnitude.
- Increased archwire diameter correlated with higher stress, displacement, and deformation.
- Simulated infraposition and linguoposition caused localized stress variations.
Conclusions:
- Archwire diameter significantly influences force magnitude and stress distribution in orthodontic systems.
- Findings offer a theoretical framework for understanding force transmission.
- Results are idealized estimates, not direct clinical predictors.
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