Dean Li Zhenxiu is responsible for the protruding operation of Faith Rheinland Plastic Surgery Hospital, and performs corresponding operations according to different situations. The overexposure of gingival bone and protruding mouth were corrected by protruding mouth surgery. In situations like this, especially when the mouth is closed, there will be an unnatural feeling in the mouth and chin. In addition, the lips look thicker, and compared with the protruding mouth, the chin looks back and there is a feeling of no jaw. A protuberant operation like this is corrected by pulling out the upper and lower four teeth and using the space of the pulled teeth to move the gum bone backwards.