If chin skew is the cause of asymmetry, orthodontic treatment can be performed at the same time as chin correction surgery. Asymmetry of cheekbones and inconsistency of left and right dimensions will lead to asymmetry of face. You can even see the distortion of the entire facial skeleton itself. Then you can improve it by grinding your cheekbones. If the cheeks on both sides are asymmetrical, you can inject a proper amount of botulinum toxin on one side to make it symmetrical, or you can fill one side to improve the asymmetry of the face. This website miracle 120.com has a detailed introduction.