In the Name of God:

Adenoid hypertrophy is one of the most prevalent disorders in childhood that affects on many of human organs, functions and disturbed them. The causes of the adenoid hypertrophy have not been clearly known, but perhaps frequent infection, allergy, rhinitis and chronic sinusitis have role for it. The purpose of this study was evaluating the effects of adenoid hypertrophy on occlusion and some indexes of the face and jaw. For this purpose, 48 children (6-12 years) with adenoid hypertrophy (case group) and a control group chosen from Khorasgan Faculty of Dentistry, private dental offices, and Isfahan medical sciences hospitals in a simple random method. Then 48 children of the case group were compared with 48 children of the control group. For statistical analysis we used SPSS software, T and chi square tests. The results showed that children with adenoid hypertrophy had more mouth breathing, greater overjet and lesser overbite and posterior cross bite, anterior open bite, abnormal dental class, and rhinolalia than the control group.