Many patients have the concern that the bone will not heal or will not shift. There is also the misconception that grinding is safer than osteotomy. 1, zygomatic bone zygomatic arch osteotomy lowering In the lateral wall of the maxillary sinus osteotomy, not only to retain the integrity of the maxillary sinus, but also to maximize the reduction of the zygomatic bone. A small titanium plate is made at the zygomatic arch for strong internal fixation. With careful manipulation, close contact at the osteotomy and strong fixation there is no possibility of bone non-union. It is important to emphasize the importance of strong internal fixation, otherwise there is a risk of bone displacement and non-healing. 2, osteotomy Many patients talk about osteotomy, thinking that it is a very big operation with high risk. In fact, for professional maxillofacial surgeons, it is not very difficult. There are also many people who think that the bone polishing will be fine, and the trauma is still small, so there is no need for bone amputation. All of the above concepts are misconceptions. The first two are very thin and fine bones. To draw an unflattering analogy, if you want to reduce the size of a birdcage, should you grind each wire finely or should you reshape the wire? So for cheekbones osteotomy is more appropriate. Bone grinding is only suitable for patients with high zygomatic bodies (protruding below the infraorbital area and not protruding on both sides of the zygomatic arch), and it requires stripping away the ligaments and periosteum and other structures attached to the bone, which is more likely to cause facial soft tissue sagging.