Confirming Nasal Airway Dimensions Observed on Panoramic and Posterior-Anterior Cephalometric Radiographs Using An Acoustic Rhinometer
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AIM: This study aimed to confirm the nasal airway dimensions observed in standard dental radiographs through analysis of the anterior nasal cross-sectional area and nasal volume with acoustic rhinometry. METHOD: Participants were chosen from the patient population under consideration for interceptive orthodontic treatment at Tufts University’s Pediatric Dentistry Clinic. A total of 55 Caucasian subjects, of both sexes (males=28, females =27), and ranging from age 6–9 years (mean= 7.33) were enrolled. Utilizing the ImageJ program, the subjects’ panoramic and PA cephalometric radiographs were analyzed for radiolucent anterior nasal cross-sectional area. Subjects were then examined with the Eccovision Acoustic Rhinometer, which measured anterior nasal cross-sectional area and nasal volume. Data were grouped together, and areas and volume gathered from the radiographs and rhinometer analyzed for any correlation. Statistical analysis was performed using the SPSS program. Data was further divided into right and left nasal side, and a Pearson Correlation Matrix was created for 8 predictor variables (right and left panoramic area, right and left cephalometric area, right and left rhinometer area, and right and left rhinometer volume). RESULTS: Values in this correlation matrix ranged from 0.712 to 0.988; all were statistically significant at the <0.01 level (2-tailed test). CONCLUSION: A very strong correlation was found between the anterior nasal cross-sectional area calculated from the radiographs, and the anterior nasal cross-sectional area and nasal volume from the rhinometer.
Key wordsacoustic rhinometry ImageJ children age nasal area volume panoramic radiograph cephalometric airway dimensions orthodontics
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- Grim D.L. Seeing the larger medical picture: airway enhancement for true orthodontic health. J Gen Orthodon. 1995;6(3):5–8.Google Scholar
- Hilberg O. Acoustic Rhinometry: evaluation of nasal cavity geometry by acoustic reflection. J. Appl. Phsyiol. 1989;66:295–303.Google Scholar
- Kamal I. Acoustic Reflectometry of the Nose and Pharynx. Brown Walker Press. 2004. pp 55–67.Google Scholar
- Kawashima S. Cephalometric comparisons of craniofacial and upper airway structures in young children with obstructive sleep apnea syndrome. Ear, Nose & Throat J. 2000;79(7):505–6.Google Scholar
- Linder-Aronson S. The effect of adenoids on mode of breathing and nasal airflow and their relationship to characteristics of the facial skeleton and the dentition. Acta Otolaryng. 1970; Suppl 265:118–23.Google Scholar
- Lopatienė K. Babarskas A. Malocclusion and upper airway obstruction. Medicina. 2002;38(3):2002.Google Scholar
- Moss, M.L. The functional matrix. In Kraus, B.S. and Riedel, R.A., ed. Vistas in Orthod., Lea and Febiger. 1962; pp. 85–98.Google Scholar
- Rasband W.S. ImageJ, U.S. National Institutes of Health, Bethesda, Maryland, USA, http://rsb.info.nih.gov/ij/1997-2006.
- Sassouni V. The influence of perennial allergic rhinitis on facial type and a pilot study of the effect of allergy management on facial growth patterns. Annals Allergy 1985;54(6):493–7.Google Scholar
- Scott J.H. The cartilage of the nasal septum. Brit Dent. J., 1953;95, 37–43.Google Scholar
- Shapiro G.G., Shapiro P.A. Nasal airway obstruction and facial development. Clin Rev Allergy and Immunol 1984;2(3), 225–35.Google Scholar