Traditionally 2D cephalometric analysis has been used for diagnosis and treatment of maxillofacial deformities. However, 2D
has some limitations in diagnosis and treatment planning especially facial asymmetry cases. The most weakness of 2D is overlapping
and unpredictability. Today 3D treatment tools are used by many maxillofacial surgeons. 3D treatment tools can show
ungarbled facial anatomy and do virtual surgery. The aim of this report is to present usefulness of using 3D analysis and virtual
orthognathic surgery for severe facial asymmetry patients.