Ameen Abdullah Yehia  <br/><br/>
A clinical and radiographic study of the prevalence of tramatic injuries to the permanent incisors among group of Egyptian and Yemeni school children /  
 دراسة مقارنة سريرية واشعاعية لمدى انتشار الرضوض السنية للقواطع الدائمة فى مجموعة من اطفال المدراس المصريين واليمنيين 
Ameen Abdullah Yehia ; Supervised Nevine Waly , Hala Zakaria , Gihan Abuelneil 
 - Cairo :   Ameen Abdullah Yehia ,   2009 
 - 95 Leaves :   charts , facsimiles ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Pedodontics 
<br/><br/> This study was carried out to compare the prevalence and determine the causes of traumatic injuries to permanent incisors teeth in 7-14 year old children among group of Egyptian and Yemeni school children. This study was performed on 2000 school children divided into two equal groups. 1000 Egyptian (50%) children and 1000 Yemeni children 
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<br/><br/><label>Subjects--Index Terms: </label>Clinical  Prevalence  Radiographic