1. Bone grinding surgery is an operation to change the face by removing a part of the cheekbones. This operation does not need to remove any bone, but only needs to use professional grinding tools to thin the outer layer of mandibular angle bone, thus reducing the width. But don't treat bone grinding surgery as a simple "subtraction". The thickness of the mandible that can be worn off is very limited, only 5-6 mm at most.

Second, the bone grinding process

1. negotiation: the surgeon expresses to the doctor what he wants to reduce and what he wants to achieve. Doctors usually take X-rays or even magnetic resonance before operation to clearly understand the bone structure, and then make suggestions according to personal characteristics to determine the operation method.

2. Anesthesia: divided into local anesthesia and general anesthesia. From the surgical effect itself, both kinds of anesthesia can complete the operation, but in the process of incision and operation, the operator of local anesthesia will feel the vibration of the machine, thus producing fear. Therefore, if the surgeon wants to feel the operation completely, the doctor suggests using general anesthesia.

3. Incision: make an incision in the mouth near the mandibular angle or zygomatic bone, cut the whole facial skin and muscle from the mouth, separate the muscle from the periosteum, expose the bone part that needs surgery, and then perform surgery. There was a method of extraoral incision before, but it was later eliminated. Because most of the blood vessels and nerves are in the position where the muscles connect with the skin, the incision is in the mouth, and there is a layer of muscle between the instrument and the nerve during the operation, which can increase the safety.

4. Hemostasis: The effect of hemostasis not only affects the safety of the operator during operation, but also is an important factor in the occurrence of hematoma after operation. In addition to the need to stop bleeding when the muscle is separated from the periosteum, if you choose bone cutting surgery, you should apply bone wax to the wound of the bone to stop bleeding and help the bone recover itself.

5. Surgery: Choose the appropriate surgical method as needed. It is worth noting that during the operation, the dropped bone components must be washed with saline, because these powders will stick to the wound surface of the incision, and when the muscles return to their original positions, they will stick to the bone and continue to survive and grow.

6. Masticatory muscle treatment: After the operation, due to the changes in the skeletal support structure of the masticatory muscle, the doctor will treat it according to the hypertrophy of the masticatory muscle of the operator. If it is too fat, some muscles in the back can be removed to adapt to the new bone structure; If you are not too fat, you don't need to make additional adjustments because the muscles themselves will shrink after the operation.

7. Suture and drainage: place a drainage tube while suturing the wound to remove congestion. Generally, the drainage tube can be pulled out the next day after operation.

8. Appropriate pressure dressing: By dressing the face, it can not only stop bleeding, but also help to shape the face.