“one side is different”
What you see
One half of the face is higher, wider or shorter than the other in front-view photos.
What the cause may be
Asymmetry of the jaws, not only of the soft tissue: a habit of chewing on one side, or a congenital growth pattern.
What the doctor looks at
3D analysis of the asymmetry of the jaws and soft tissue, a plan for symmetrical correction (maxillary and/or mandibular osteotomy; when indicated, bimaxillary surgery).
Before / after