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The sensory effect of the change of nasolabial angle and facial angle on the protrusion of upper lip

The sensory effect of the change of nasolabial angle and facial angle on the protrusion of upper lip

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2300071944
Enrollment
Unknown
Registered
2023-05-30
Start date
2023-01-18
Completion date
Unknown
Last updated
2023-06-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthodontic and treatment

Interventions

Doctor:The questionnaire
Normal people:The questionnaire

Sponsors

Hosptial of Stomatology, Sun Yat-sen University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 44 Years

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

MeasureTime frame
Sensory evaluation ;

Secondary

MeasureTime frame
Sex;Age;

Countries

China

Contacts

Public ContactBao Baicheng

Hosptial of Stomatology, Sun Yat-sen University

baobaicheng@163.com+86 138 0291 6799

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026