To assess the relationship between the airway space of throat area and sleep cycle.

INTERVENTION: Intervention1: Pharyngeal space measurement: Pharyngeal space measurement will be taken and assess for space measurement at 4 weeks. Control Intervention1: Lateral cephalogram.: Lateral cephalogram of all the patients will be taken and will be used in assessing the airway dimension in the patients at baseline. CONDITION: PRIMARY OUTCOME: The size of pharyngeal airway dimension will be assessed and will be correlated to the sleepiness.Timepoint: Baseline SECONDARY OUTCOME: Airway measurement will be taken using pharyngeal airway space measurement at different levels as follows‐ ; 1.Nasopharyn X; 2.Oropharyn X; 3.Hyoid bone positionTimepoint: 4 weeks INCLUSION CRITERIA: 1.Patient within the age group of 14‐30 years. 2.Patients with vertical growth pattern. 3.Patients with normal growth pattern.