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Updated: Aug 26, 2026
Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
Published on: October 20, 2023
[A postero-anterior cephalometric assessment of UCLP patients before and after rapid maxillary expansion]
Yu-fen Qian1, Xiao-jun Ding, Yong-qing Yan
1Department of Orthodontics, Shanghai Second Medical University, Ninth People's Hospital, Shanghai 200011, China.
Objective:
To evaluate the effect of rapid maxillary expansion on skeletal,dental,and nasal structures.
Methods:
8 UCLP patients in the period of permanent teeth (mean: 14 years old) were treated with rapid maxillary expansion. Pretreatment and posttreatment postero-anterior cephalograms were taken to evaluate the changes of the indicators. The data were analyzed with paired t-test.
Results:
The indicators of the width of the nasal cavity, the upper intermolars, and the upper base bone had significant change (P<0.05).
Conclusion:
Following dental arch expansion, the cleft side had remarkable skeletal alteration, while the alteration in noncleft side was mainly in teeth position. The nasal cavity had been expanded. It's more symmetrical between the relevant parts.
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