الفهرس 
Title : Assessment Of Stress Distribution Using Equator Attachment Design In Mandibular ImplantRetained Overdentures In Comparison With Ball And Socket Attachment Design (A Three-Dimensional Finite Element Analysis
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Abstract
Aim: to accomplish a comparative study between two types of attachment Equator and Ball/Socket in mandibular implant supported overdenture by using finite element analysis and assessment of stress distribution on the bone, implant. overdenture, mucosa and attachment. Methodology: three-dimensional models simulated a clinical situation where an edentulous mandible was restored by two different treatment options using implant overdentures. The overdentures were supported by two implants placed at the approximate canine region using Ball/Socket and Equator attachments. The load was applied of value of 50,100,200 N with angle of vertical 90{u00B0} then the oblique load with angel 45{u00B0}Results: Equator attachment showed superior behavior over traditional attachment (ball & socket) when loaded at central incisor. Conclusion: Equators body and its caps (flexible and metallic) received lower stresses that indicating longer life time and longer periods between successive maintenances