Edentulism, the loss of all the natural teeth, significantly impacts a patient's functional, aesthetic, and psychological well-being. Traditional dentures often fail to provide the required stability and functionality. Implant-supported full-mouth rehabilitation has emerged as an advanced solution, leveraging strategically placed dental implants to support fixed prostheses that mimic natural teeth in appearance and function. This case report details the comprehensive treatment of a 78-year-old male patient with complete edentulism, utilizing six implants in both the maxillary and mandibular arches. Following a five-month healing period, a series of precise prosthetic procedures, including abutment-level impressions, custom tray fabrication, and implant-level impressions, were performed to ensure optimal fit and functionality. The final prostheses provided significant improvements in masticatory efficiency, speech, and overall quality of life. The report underscores the transformative potential of implant-supported rehabilitation, highlighting high success rates, patient satisfaction, and the multifaceted benefits of restoring oral function and aesthetics with advanced dental technologies.