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Updated: May 24, 2026
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Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
Published on: October 20, 2023
[3-D finite element study on rapid maxillary expansion using implant anchorage]
Hong-hai Pan1, Yue Huang, Zheng Yang
1Deptartment of Orthodontics, the Affiliated Hospital of Stomatology, Luzhou Medical College, Luzhou 646000, China.
Summary
Implant anchorage in rapid maxillary expansion significantly alters craniofacial biomechanics. Anterior implant positioning results in greater stress and displacement, particularly along facial sutures.
Area of Science:
- Orthodontics
- Biomechanical Engineering
- Craniofacial Surgery
Context:
- Rapid maxillary expansion (RME) is a common orthodontic treatment.
- Implant anchorage offers enhanced stability and control during RME.
- Understanding biomechanical changes is crucial for optimizing treatment outcomes.
Purpose:
- To investigate the biomechanical effects of implant-anchored RME on the craniofacial complex.
- To analyze stress distribution and displacement patterns under varying implant configurations.
Summary:
- Finite element analysis simulated RME with implant anchorage, applying 80 N forces.
- Maximal stress and displacement were observed along sutures (frontonasal, zygomaticomaxillary, nasomaxillary, pterygopalatal) and with anterior implant placement.
- The number of implants did not significantly affect stress or displacement, but position did.
Impact:
- Findings highlight the critical role of implant positioning in RME biomechanics.
- Informs clinical decisions regarding optimal implant placement for predictable craniofacial changes.
- Contributes to the understanding of skeletal response to surgically assisted RME.
