films of 90 subjects, 45 males and 45 females, having different ANB angles. All of the
subjects were aged 13 to 15 years. The films were taken at natural head position, and all
were divided into three groups according to the ANB angle: ANB angles smaller than 1°,
between 1° and 5°, and larger than 5°. In addition, each group was also divided into two
subgroups according to sex. The effects of the ANB angle and sex on the pharyngeal size …