Prosthodontic Rehabilitation using Maxillary Fixed Dental Prosthesis with Tenon and Mortise Stress Breaker and Mandibular Complete Denture with Metal Reinforced Base: A Case Report The goal of restorative dentistry is to preserve teeth's natural structure and function while averting further issues with oral health. The most common treatment approach for rehabilitating one or two teeth is the insertion of a fixed dental prosthesis. This method offers a workable alternative for replacing lost teeth, and its longevity guarantees a long-term solution to prevent further oral health problems. To summarize, individuals with one or two missing teeth can have their smiles restored with a fixed dental prosthesis, which is a dependable, efficient, and effective method. To solve the prevalent problem of repeated prosthesis fractures, a single complete denture with a metal-reinforced base was utilised. This procedure offers a more durable and long-lasting solution for replacing lost natural teeth compared to traditional methods. This case study describes the thorough clinical treatment and fabrication of a pier abutment and metal denture base.