الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
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Abstract
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.