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Updated: Feb 15, 2026

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Methods for the Study of the Zebrafish Maxillary Barbel
Published on: November 23, 2009
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Rhinofibroscopic and Rhinomanometric Evaluation of Patients with Maxillary Contraction Treated with Rapid Maxillary
The Journal of Clinical Pediatric Dentistry
|January 24, 2018
Summary
Rapid palatal expansion significantly improved nasal airway patency and reduced nasal resistance in children. This orthodontic treatment positively impacts upper airway function for those with breathing difficulties.
Area of Science:
- Orthodontics
- Pediatric Dentistry
- Otolaryngology
Background:
- Transverse maxillary constriction can impede nasal airway patency.
- Assessing upper airway function is crucial in pediatric orthodontic patients.
Purpose of the Study:
- To evaluate the impact of rapid palatal expansion on nasal airway patency.
- To measure changes in nasal resistance before and after treatment using objective methods.
Main Methods:
- Nasal fiber optic endoscopy and rhinomanometry were used.
- 30 patients (7-11 years) with transverse maxillary constriction were examined pre- and post-rapid palatal expansion.
- Nasopharynx obstruction and nasal resistance were quantified.
Main Results:
- A significant decrease in nasopharynx obstruction was observed post-expansion (p<0.001).
- Total nasal resistance for both inspiration and expiration significantly reduced (p<0.001).
- A positive correlation was found between reduced obstruction and decreased expiratory nasal resistance.
Conclusions:
- Rapid maxillary expansion positively influences nasal resistance.
- The treatment enhances upper airway patency in children with mild to moderate breathing issues.
Keywords:
fiberoptic endoscopymaxillary contractionnasal obstructionrapid palatal expansionrhinomanometryMore Related Videos
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