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Relationship between olfaction and maxillofacial morphology in children with malocclusion
Shiori Oka1, Hitoshi Kawanabe2, Shinya Yamanobe2
1Department of Oral Growth and Development, Division of Dentofacial Orthopedics, Ohu University, Graduate School of Dentistry, Fukushima, Japan.
Clinical and Experimental Dental Research
|September 25, 2020
Summary
Children with malocclusion, specifically skeletal Class III, experience reduced olfaction. Maxillary growth may impact smell, suggesting orthodontic treatment could improve olfactory function.
Area of Science:
- Dentistry
- Otolaryngology
- Pediatrics
Background:
- Functional nasal problems correlate with skeletal and dental features.
- Maxillary expansion influences nasal airway resistance.
- Understanding the link between craniofacial structure and olfaction is crucial.
Purpose of the Study:
- To investigate the correlation between skeletal features and nasal airflow/olfaction problems in children.
- To determine if specific skeletal classes impact olfactory function.
Main Methods:
- Prospective study of 68 children (mean age 9 years).
- Skeletal classification (Class I, II, III) based on ANB angle.
- Assessment using cephalometric analysis, rhinomanometry, and T&T olfactometry.
Main Results:
- Skeletal Class III associated with reduced olfaction (higher detection/recognition thresholds).
- Significant correlations found between SNA/nasion perpendicular-point A and olfactory thresholds.
- Malocclusion, mandibular protrusion, and smaller maxilla linked to diminished olfaction.
Conclusions:
- Maxillary growth and development may influence children's olfaction.
- Modifying maxillofacial morphology might enhance olfactory function.
- Further research will explore malocclusion treatment's effect on olfaction.
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