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Updated: Jul 7, 2026
07:16
Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
Published on: October 20, 2023
[Three-dimensional finite element stress analysis of normal maxillary complex under two different conditions]
Tong Zhang1, Hong-Chen Liu, Yan-Rong Wang
1Department of Stomatology, General Hospital of PLA, Beijing 100853, China.
Summary
The biomechanics of the maxillary complex show different stress distributions between open-mouth and centric occlusion positions. Masticatory muscle state significantly influences stress, highlighting its importance in biomechanical studies.
Area of Science:
- Biomechanical analysis
- Craniofacial biomechanics
- Finite element analysis
Context:
- The maxillary complex is crucial for mastication and facial structure.
- Understanding its biomechanical behavior under different functional states is essential for dental and orthodontic applications.
- Previous studies have not fully elucidated the stress distribution variations due to masticatory muscle states.
Purpose:
- To investigate stress distribution changes in the normal maxillary complex.
- To explore the biomechanical reaction features under varying conditions.
- To compare stress patterns between open-mouth and centric occlusion positions.
Summary:
- A 3D finite element analysis was performed on the normal maxillary complex.
- Stress distribution was analyzed under centric occlusion and open-mouth conditions with identical loads.
- Results indicated unequal stress distribution, with higher stress limits observed in the open-mouth position (8.969 N) compared to centric occlusion (6.497 N).
Impact:
- Findings demonstrate that the overall stress in the maxillary complex is lower during centric occlusion due to masticatory muscle states.
- This study underscores the necessity of incorporating masticatory muscle influence into biomechanical models of the maxillary complex.
- Provides critical data for designing more effective orthodontic treatments and understanding craniofacial development.
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