Wael Aly Sayed <br/><br/>
Stress distribution analysis of two types of denture base materials (rigid and resilient) in implant supported overdenture using magnetic attachment :   3 D finite elements study /  
 تقييم توزيع الجهد باستخدام الأكريل الصلب على الأطقم المحمولة المدعمة بغرسات الأسنان مقارنة بالأكريل المرن :   دراسة تحليل العناصر المحدودة ثلاثية الأبعاد 
Wael Aly Sayed ; Supervised Hamdy Aboalfotoh , Mostafa Helmy 
 - Cairo :   Wael Aly Sayed ,   2018 
 - 118 P. :   charts ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontic 
<br/><br/> The implant supported overdenture for complete edentulous patients become more satisfied for patients in retention, phonetics and mastication when compare to conventional denture . The literature regard the more occlusal force transmitted to implants and surrounding structure lead to bone resorption (Kim et al. 2004b; Wang et al. 2017). The aim of this study compare between different types of denture base materials that help in decrease bone resorption and less overdenture maintenance , the amount of force using by finite element analysis . When compare between forces application vertically on mesial first molar and distal of second premolar area by forced 50N, 100N.150N and oblique 100 N  the (worst scenario) , in both conventional acrylic resin and flexi resin acrylic both in physiological limit of bone . Within limitation of study following conclusion can be derived :  1)Cortical bone showed similar outcome in both denture base materials. 2)Cancellous bone behavior showed no effect of denture base material on its stresses or deformations . 3)Rigid denture base material generated higher stresses on magnetic attachment by about 10% than using the resilient one  
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<br/><br/><label>Subjects--Index Terms: </label>Denture base materials (Rigid and Resilient)  Implant supported overdenture  Magnetic attachmen