Orthodontic and treatment
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: The inclusion criteria of picture models in the questionnaire 1. Chinese 2. Osseous Class I and Angle Class I occlusion 3. Dentition crowding degree =? degree, normal overbite coverage 4. All permanent teeth except the third molar burst out 5. No maxillofacial soft and hard tissue malformations, no treatment history of orthodontic, orthognathic and cleft lip and palate, no facial plastic treatment history 6. No obvious facial makeup and accessories 7. Signed the informed consent and agreed that the research group would use their portraits for modification and questionnaire survey
Exclusion criteria
Exclusion criteria: 1.There are serious mental diseases such as body image disorder patients, obsessive-compulsive patients 2.Unable to agree with the research and unable to understand the questionnaire questions (such as illiteracy)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Sensory evaluation ; | — |
Secondary
| Measure | Time frame |
|---|---|
| Sex;Age; | — |
Countries
China
Contacts
Hosptial of Stomatology, Sun Yat-sen University