Orthodontic treatment using a novel mandibular advancement functional appliance for retrognathia in adolescent: a clinical randomized controlled study.

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000036121

Enrollment

Unknown

Registered

2020-08-21

Start date

2020-09-01

Completion date

Unknown

Last updated

2021-01-05

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

Conditions

retrognathia malocclusions

Interventions

Intervention group:angleArm

Control group:Activator

Eligibility

Sex/Gender

All

Age

9 Years to 16 Years

Inclusion criteria

Inclusion criteria: 1. Male and Female aged 9-16 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 ofmaxillofacial, 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

Measure	Time frame
0-Pos value;	—

Secondary

Measure	Time frame
orthodontics cephalometrics;Duration of treatment;Dental model measurement;mandibular movement;Upper airway volume;	—

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 13057942641

Outcome results

None listed

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