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Midpalatal suture maturation: classification method for individual assessment before rapid maxillary expansion.
Fernanda Angelieri1, Lucia H S Cevidanes, Lorenzo Franchi
1Associate professor, Department of Orthodontics, Methodist University of São Paulo, São Paulo, Brazil.
Summary
This study introduces a new classification for midpalatal suture maturation, aiding in age assessment for dental treatments. It helps determine the optimal timing for interventions like rapid maxillary expansion.
Area of Science:
- Dentistry and Oral Health
- Radiology
- Human Anatomy
Background:
- The midpalatal suture's morphology changes throughout life, impacting orthodontic treatment decisions.
- Accurate assessment of midpalatal suture maturation is crucial for effective interventions.
Purpose of the Study:
- To introduce a novel classification system for assessing individual midpalatal suture morphology.
- To define radiographic stages of midpalatal suture maturation.
Main Methods:
- Cone-beam computed tomography (CBCT) images from 140 subjects (ages 5.6-58.4 years) were analyzed.
- Five distinct radiographic stages (A-E) of midpalatal suture maturation were identified and defined.
- Intraexaminer and interexaminer reliability was assessed using weighted kappa tests.
Main Results:
- Stages A and B were common up to age 13.
- Stage C was observed mainly between 11-17 years.
- Suture fusion (Stages D & E) after age 11 occurred earlier in females than males.
Conclusions:
- The proposed classification method allows for individual assessment of midpalatal suture maturation.
- This classification can help prevent complications associated with rapid maxillary expansion, such as treatment failure or unnecessary surgical intervention in older individuals.
