6.1 Examination and Evaluation of Facial Asymmetry
In recent decades, the development of various diagnostic techniques has facilitated accurate assessments of facial asymmetry. In particular, the development of three-dimensional (3D) diagnostic tools has enabled the identification of more asymmetry details than were possible using the two-dimensional plane, allowing these details to be reflected in the surgical plan [1–3]. In particular, facial scanners, capable of 3D evaluations of soft and hard tissues, have been used to assist surgical planning by clinicians (Fig. 6.1) .
Nevertheless, the surgeon’s clinical evaluation of the patient’s face is especially important in the surgical planning for cases of facial asymmetry. To establish a more accurate surgical plan, both a static evaluation of a facial photograph and an evaluation of the dynamic state are necessary (Fig. 6.2).