İskeletsel Sinif II Bi̇reylerde Nazofarengeal Havayolunun Farkli Geli̇şi̇m Dönemleri̇nde Değerlendi̇ri̇lmesi̇ (original) (raw)

2017, Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

The aim of this study was to compare the dimensions of the nasopharynx and oropharnynx of individuals with skeletal Class II anomaly (ANB>5 degrees) during the pre-pubertal, pubertal and postpubertal (adult)growth periods. Material and Method: A total of 45 pre-treatment lateral cephalograms of skeletal Class II cases (21 boys, 24 girls)(18 in pre-pubertal, 12 in pubertal, 15 in post-pubertal growth periods) were selected from the department archives. 13 cephalometric landmarks, 4 angular measurements, 4 linear measurements and 4 rational measurements were analyzed using Pordios computer program. Means and standard deviations of the parameters have been calculated and statistical analysis (Analysis of Variance and Duncan's tests) was utilized to compare the differences between the three groups. Results: Pre-peak group showed the smallest nasopharyngeal airway space (NAS) (21,3mm ±5,1), and NAS showed an increase towards the adult group (23,2mm±4,8 to 26,6mm±4,4). On the other hand, oropharyngeal airway space (OAS), which was measured at the level of the tip of the soft palate, did not show a significant difference between the groups (10,1mm±2,7-8,1mm±2,3 8,8mm±2,2). Conclusion: This study demonstrated that the oropharyngeal gap remained constant in skeletal Class II individuals, while superior airway space increased with growth.