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Relationship between mandibular incisor crowding and nasal mucosal swelling
D G Woodside1, S Linder-Aronson, D O Stubbs
1Department of Orthodontics, Faculty of Dentistry, University of Toronto, Canada.
Summary
Children with chronic nasal mucosal swelling exhibit distinct dental arch characteristics. This study found significantly narrower maxillary and mandibular arches, along with increased mandibular incisor crowding, in these children compared to controls.
Area of Science:
- Orthodontics
- Pediatric Otolaryngology
- Dental Morphology
Background:
- Chronic nasal mucosal swelling can impact children's health and development.
- Nasal breathing difficulties are a common referral reason to otolaryngology departments.
- Previous research utilized rhinomanometry to assess nasal airflow resistance.
Purpose of the Study:
- To investigate cephalometric and dental cast differences in children with chronic nasal mucosal swelling.
- To compare dental arch dimensions and incisor crowding between affected children and healthy controls.
- To identify potential correlations between nasal obstruction and craniofacial development.
Main Methods:
- Cephalometric analysis and dental cast measurements were performed on 50 children (30 male, 20 female) aged 8-13 with chronic nasal mucosal swelling.
- Subjects were selected based on significant improvement in nasal resistance after decongestant administration.
- Comparison was made with age- and sex-matched controls without a history of airway obstruction.
Main Results:
- Children with chronic nasal mucosal swelling showed significantly more mandibular incisor crowding (p < 0.001).
- Significantly smaller mandibular arch widths (p < 0.01) and maxillary arch widths (p < 0.001) were observed in affected children compared to controls.
- Male subjects with nasal issues had significantly smaller mandibular arch widths (p < 0.01) than male controls.
Conclusions:
- Chronic nasal mucosal swelling in children is associated with specific dental arch anomalies, including crowding and reduced arch width.
- These findings suggest a potential link between nasal obstruction and altered craniofacial development, particularly affecting the dental arches.
- Further research is warranted to explore the etiological relationship and clinical implications of these associations.