Jaw plastic surgery will not cause rebound. Craniomaxillofacial cosmetic surgery mainly refers to various surgeries that change the face shape: such as cheekbone reduction surgery, mandibular angle hypertrophy surgery (changing a square face into an oval face), chin horizontal osteotomy and advancement surgery (correcting a small chin), etc. These operations are delicate and require sophisticated surgical instruments. The surgeon must have both the artistic aesthetics of a sculptor and first-class surgical skills.