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Orthodontic treatment for retrognathia in adolescent: a perspective cohort study

Orthodontic treatment for retrognathia in adolescent: a perspective cohort study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1900027978
Enrollment
Unknown
Registered
2019-12-07
Start date
2019-12-31
Completion date
Unknown
Last updated
2019-12-10

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

Conditions

retrognathia malocclusions

Interventions

treatment group:Classic two-stage orthodontic treatment
control group:NA

Sponsors

Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
9 Years to 12 Years

Inclusion criteria

Inclusion criteria: 1. Male and Female aged 9-12 years; 2. convex type; 3. SNA5o, Pog /0 line -5mm, Wits>5mm, overbite >5mm, diagnosed as retrognathia malocclusions.

Exclusion criteria

Exclusion criteria: 1. convex type with hyperplasia maxillary and normal mandibular; 2. anterior teeth missed; 3. trauma history of mandibular or maxillofacia; 4. severe infection history of maxillofacial, craniofacial syndrome, rheumatoid arthritis, diabetes, osteoporosis; 5 .Hepatitis b, HIV or syphilis positive; 6.can not cooperate with complete treatment or the follow-up.

Design outcomes

Primary

MeasureTime frame
orthodontics cephalometrics;—

Countries

China

Contacts

Public ContactBing Fang

Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine

2334944496@qq.com+86 1376471988

Outcome results

None listed

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