Malocclusion is an abnormal relation thal could happen at inter-arch or at the pos i t ion ofthe leeth. Malocclusion could ajfect teeth functions, such as physical function (mastication), speaking and esthetic (appearance), that injluence the quality oflife. Based on the latest research, severe malocclusion had affect the quality of life of the adui t people. The aim of this study is t o determ…