Orthognathic surgery is mainly to correct dislocated teeth and adjust the disharmony between dental arch and jaw. Bone cutting and cheek grinding are mainly plastic surgery, and bad bone types are removed and polished to beautify the face. Grinding cheeks usually means grinding bones. Grinding bones does not need to remove too many bones, but only needs to trim the appearance, which has a good effect on improving the positive face shape. Bone cutting is mainly used for facial side repair, and it is often combined with bone grinding and bone cutting to change the effect more comprehensively.

These methods are mainly aimed at the large face caused by hard tissues of the face, but the shaping of the face mainly depends on soft tissues, such as fat, fat pad and masseter muscle, so not everyone is suitable for grinding or cutting bones. In addition, bone grinding surgery is difficult, so it must be carried out in a regular medical institution that is good at this technology to ensure its own safety and postoperative effect.