الفهرس 
Effect of using rigid versus non-rigid attachments on stresses induced in peri-implant bone in implant-supported prostheses
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Abstract
Background: Peri-implant bone forces can sometimes be very high. Efforts are made in order to lower these forces at normal level. Methods: A finite element analysis was done in which two models were compared, the rigid attachment used in a fixed prosthesis versus the nonrigid one used in a removable prosthesis. Both of them were completely implant-supported. Results: have shown that the rigid type produced higher stresses than the nonrigid one. Conclusion: Nonrigid attachments are more biocompatible than the rigid attachments