Partial arthroplasty of the lower jaw at the present stage is one of the alternative methods of rehabilitation of patients with tumors or traumatic injury maxillofacial area. Project resection implant automatically using special CAD / CAM software. The aim of our study was to design the resection implant (endoprosthesis) of chin areas of the mandible. https://allfixelectricales.shop/product-category/tube-expander-kit/