Related Experiment Videos
[Finite element analysis on physiological mobility of individual teeth]
1Department of Orthodontics, School of Dentistry, Tokushima University.
Shika Zairyo, Kikai = Journal of the Japanese Society for Dental Materials and Devices
|March 1, 1990
Summary
The finite element method revealed non-linear tooth movement due to stress-dependent periodontal membrane properties. This approach accurately estimates mechanical characteristics of the tooth
Area of Science:
- Biomechanical analysis of dental structures.
- Application of the finite element method (FEM) in orthodontics.
- Investigation of soft tissue mechanics.
Context:
- Understanding initial tooth movement is crucial for orthodontic treatment planning.
- The periodontal membrane's mechanical properties influence tooth response to forces.
- Previous models often simplified the non-linear behavior of periodontal tissues.
Purpose:
- To investigate initial tooth movement using a non-linear finite element analysis.
- To estimate the mechanical properties of the periodontal membrane.
- To introduce and apply the concept of apparent elastic modulus for soft tissues.
Summary:
- A finite element model of an upper central incisor simulated axial loading.
- Apparent elastic moduli, dependent on stress, were used for the periodontal membrane and gingiva.
- The simulation demonstrated a non-linear load-displacement relationship, aligning with clinical data.
Impact:
- The study highlights the non-uniformity of elastic moduli within the periodontal membrane.
- Provides a more accurate method for simulating initial tooth displacement.
- Enhances understanding of periodontal tissue mechanics for improved orthodontic interventions.