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Updated: Jun 16, 2026
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Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
Published on: October 20, 2023
Cranial strains and malocclusion VIII: palatal expansion
1gavjam@cogeco.ca
International Journal of Orthodontics (Milwaukee, Wis.)
|February 5, 2010
Summary
Current palatal expansion methods often fail to correct asymmetry. ALF appliances offer a gentle, orthopedic solution for symmetrical palatal expansion, challenging the use of rapid expansion techniques.
Area of Science:
- Orthodontics
- Craniofacial development
Background:
- Palatal asymmetry is common in orthodontic patients.
- Conventional expansion appliances may not achieve symmetrical results.
Observation:
- Pre-treatment palatal and maxillary arch asymmetry is nearly universal and non-random.
- Symmetrical expansion appliances do not guarantee a symmetrical outcome.
Findings:
- ALF (Alternative Light Force) appliances enable orthopedic, symmetrical palatal expansion using light forces.
- Case studies demonstrate the efficacy of ALF appliances in achieving symmetrical expansion.
Implications:
- ALF appliances represent a more appropriate method for palatal expansion compared to older techniques.
- Rapid palatal expansion may be iatrogenic and should be reconsidered in orthodontic practice.
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