Abstract
Aims: The aims of the study were to measure different variables of pharynx in class I and class II skeletal
relation, clarify the effect of gender on the pharyngeal measurements and to find the effect of different
classes (class I and class II) on the pharyngeal measurements. Materials and Methods: The
samples consisted of cephalometric films of 40 subjects, 20 males (10 class I and 10 class II) and 20
females (10 class I and 10 class II). These films were traced and ten linear measurements of the pharynx.
Results: No significant difference were noticed between males and females in class I participants
except in Ba–PNS (sagittal depth of the bony nasopharynx), PNS–ppw (the sagittal depth of the pharynx
along the line ANS – PNS) and hy–MP (millimeter distance from hyoid to the mandibular plane),
where males showed a significantly higher value; while males showed a significantly higher value in
Ba – ad2 (sagittal depth of the nasopharyngeal airway along line S – Ba) and hy–apw2 (millimeter distance
from hyoid to ap2) in class II. Conclusions: No significant differences were noticed between
males and females in class I and class II skeletal relation in most of the measured variables and also no
significant differences were noticed in the same gender neither in class I nor in class II.
