Facial Aesthetic Analysis Model Based on Clinical Cohort Phenotype to Explore 45° Facial Profile.

Inclusion Criteria: Orthodontist inclusion criteria: ① With dental doctor qualification certificate; ② At least 2 years of professional training in orthodontics. Inclusion criteria for orthodontic patients: ① Receiving orthodontic treatment for more than 1 year; ② Volunteer to participate in the study; ③ Native language is Chinese, can understand the prompt language and normal communication. General adult inclusion criteria: ① have not experienced orthodontic treatment or have no need for orthodontic treatment; ② Do not engage in stomatology industry, have not studied stomatology specialty; ③ Native language is Chinese, can understand the prompt language and normal communication. Exclusion Criteria: ① have visual impairment (such as color blindness, high myopia); ②Have psychological problems (such as autism, schizophrenia); ③ Recent use of alcohol, or long-term fatigue, anxiety; Current use of any medication that may affect cognitive ability; ⑤ Use mascara, contact lenses or small frame height glasses