The prevalence of crossbite of young adult Yemenis

الملخص EN

The prevalence of the anterior and posterior crossbite were recorded in a sample of 192 young adult Yemenis in Yemen, their mean age was (20.9 years) and had either normal occlusion or malocclusion, generally, the prevalence of all recorded types of crossbite were higher in females than in males however their differences were statistically not significant, the anterior crossbite was found to be (9.4 %), while the posterior crossbite was found to be (5.7(% in which (3.6 %) of it was of unilateral type and (2.1 %) was of bilateral type, in addition to that, the prevalence of the crossbite was the highest in class lll Angle’s classification and the lowest in class ll Angle’s classification.