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Updated: May 27, 2026
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Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
Published on: October 20, 2023
Nasal cavity volume changes after rapid maxillary expansion in adolescents evaluated with 3-dimensional simulation
Serkan Görgülü1, Sila Mermut Gokce, Huseyin Olmez
1Department of Orthodontics, Center of Dental Science, Gulhane Military Medical Academy, Ankara, Turkey. serkangorgulu@hotmail.com
Summary
Rapid maxillary expansion significantly increased nasal cavity volume and transverse dimensions. This orthodontic treatment offers a viable method for improving nasal airway space in patients with maxillary constriction.
Area of Science:
- Orthodontics
- Craniofacial medicine
- Medical imaging
Background:
- Maxillary constriction can impede nasal breathing.
- Accurate volumetric assessment of the nasal cavity is crucial for understanding treatment outcomes.
Purpose of the Study:
- To evaluate the impact of rapid maxillary expansion on nasal cavity volume.
- To utilize 3-dimensional (3D) simulation and modeling for precise volumetric analysis.
Main Methods:
- 15 patients with maxillary constriction underwent rapid maxillary expansion.
- Computed tomography (CT) scans were acquired pre- and post-treatment.
- 3D software (Mimics, Simplant Ortho) was used for nasal cavity and maxillary segmentation and analysis.
Main Results:
- Rapid maxillary expansion led to statistically significant increases in nasal cavity volume (P ≤ 0.001).
- Significant expansion in maxillary transverse dimensions was also observed (P ≤ 0.001).
Conclusions:
- Rapid maxillary expansion effectively increases nasal cavity volume.
- Observed expansion occurred in both anterior-posterior and coronal-cranial directions.
- Cranial bone resistance may influence the directionality of expansion.
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