关键词: 牙颌面畸形, 正颌外科, 手术动机, 影响因素, 调查方法

Abstract: Dentofacial deformity is a deformity of the maxillofacial bones，and the patients have abnormalities in facial appearance and oral function，which can adversely affect their quality of life and social activities. Orthognathic surgery is one of the main treatment methods for dentofacial deformities. Clinicians have paid more attention to the motives of patients undergoing orthognathic surgery. This paper reviews the research methods，research results and related influencing factors on the motives of orthognathic surgery in patients with dentofacial deformities at home and abroad，aiming to provide reference and help for clinical work.

Key words: dentofacial deformity, orthognathic, surgery motive, influencing factors, survey methodology