Computer-Assisted Orthognathic Surgery for Patients with Cleft Lip/Palate: From Traditional Planning to Three-Dimensional Surgical Simulation
Fig 5
English (Fig 5a) and Chinese (Fig 5b) versions of the OQLQ questionnaire measuring the patient’s dentofacial deformity in relation to their quality of life. It consists of a 4-point scale ranging from “bothers you a little” (score 1) to “bothers you a lot” (score 4). If the patient did not feel impaired by the subject (“does not apply, does not bother me”), it was rated as N/A or 0 points. Ranging from 0 to 88, lower OQLQ scores indicate better and higher score indicate poorer quality of life. The 22 items cover 4 topics: facial esthetics (items 1, 7, 10, 11, and 14 scoring 0 to 20), oral function (items 2–6 scoring 0 to 20), awareness of dentofacial esthetics (items 8, 9, 12, and 13) scoring 0 to 16), and social aspects of dentofacial deformity (items 15–22 scoring 0 to 32) [30].