INTRODUCTION: Several factors can lead to mechanical complications in implant-supported fixed complete dentures (IFCD).CASE DESCRIPTION: This clinical report presents a clinical case of a maxillary IFCDP with recurrent mechanical complications and a possible causal interaction between patient’s intrinsic characteristics (bruxism and high occlusal force) and technical procedures (framework design, occlusal adjustment, interocclusal splint, and posterior occlusal support).CONCLUSION: The 3-year follow-up findings highlight the need for a comprehensive and systemic approach to manage a challenging case of an IFCD patient with moderate bruxism and high occlusal force.