The plastic surgery department of Shenzhen Shuguang Hospital is one of the best hospitals in Shenzhen, which grinds bones and removes bones. This method combines the advantages of the above two simple methods by removing the hypertrophic mandibular angle and bone and making the bone surface smooth. Although the operation method is relatively complicated, it is the most popular operation method from both the side and the front, with beautiful mandibular angle and ideal effect.