There is general agreement that excessive stress to the bone-implant interface may result in implant overload and failure. Early\r\nfailure of the implant due to excessive loading occurs shortly after uncovering the implant. Excess load on a final restoration after\r\nsuccessful implant integration can result in physical failure of the implant structure.Many clinicians believe that overload of dental\r\nimplants is a risk factor for vertical peri-implant bone loss and/or may be detrimental for the suprastructure in implant prostheses.\r\nIt has been documented that occlusal parafunction, such as, bruxism (tooth grinding and clenching) affects the outcome of implant\r\nprostheses, but there is no evidence for a causal relation between the failures and overload of dental implants. In spite of this lack\r\nof evidence, often metal restorations are preferred instead of porcelain for patients in whom bruxism is presumed on the basis of\r\ntooth wear. The purpose of this paper is to discuss the importance of the occlusal scheme used in implant restorations for implant\r\nlongevity and to suggest a clinical approach and occlusal materials for implant prostheses in order to prevent complications related\r\nto bruxism.
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