EFFECT OF CHANGING THE INCLINATION OF DISTAL IMPLANTS ON PERI-IMPLANT BONE STRESS DISTRIBUTION IN EDENTULOUS MANDIBLE RESTORED WITH ?ALL ON FOUR HYBRID PROSTHESIS? [THREE-DIMENSIONAL FINITE ELEMENT ANALYSIS]

Mohamed S. Elbehairy, Nora Cheta, Tamer M. Nassef And Hamdy A. Hamed,

ABSTRACT
Background Comparing The Effect Of Implant Inclination On Stress Distribution In Peri-implant Bone In Mandibular All On Four Hybrid Prosthesis. Material And Methods Bone Model Was Reconstructed From CBCT Scan Segmentation, Implants And Cad/cam Prosthesis Were Exported As STL Files And Converted Into Solid Parts By Reverse Engineering Followed By Part Assembly, Meshing And Load Application. Results A Large Decrease In Von-mises Stresses Was Observed In The Model With 30 Degrees Tilted Implants. Conclusion Model D30 Was The Best Treatment Design Regarding Stress Distribution Compared To The Other Two Models.

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