Certain candidates are prone to requiring additional surgery in conjunction with the zygoma reduction surgery. I osteotomy position as well as zygoma fracture repositioning. Zygoma implants take the anchorage from the zygoma/zygomatic bone (cheek bone). Zygoma reduction surgical approach can be divided into two types, external or intraoral approach. The zygoma (cheekbone) and the frontal bone (forehead) are other sites for fractures. In mammals, including humans, the jugal bone is more commonly referred to as the zygoma. Zygoma reduction, also known as Cheekbone reduction surgery.