Skeletal Class II hyperdivegent malocclusion
Conditions
Interventions
test group:vertical control + incisors retraction
control group:incisors retraction
Sponsors
Shanghai Stomatological Hospital
Eligibility
Sex/Gender
All
Age
12 Years to 18 Years
Inclusion criteria
Inclusion criteria: 1. Aged 12-18 years, no gender limit; 2. Protrusion deformity, poor chin morphology, mandibular retrusion, ANB>5 degree, maxillary development is basically normal; 3. Children with long-face growth pattern, SN-MP>35 degree; 4. The subjects are required good compliance and regular follow-up.
Exclusion criteria
Exclusion criteria: 1. Patients with temporomandibular disorders; 2. Patients with metal allergy; 3. Unsuitable for orthodontic treatment due to systemic disease; 4. Patients with sagittal mandibular deficiency requiring mandibular advancement treatment, after review by the expert group; 5. Patients with severe vertical overgrowth who must take vertical control measures after review by the expert group.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| ANB angle; | — |
Secondary
| Measure | Time frame |
|---|---|
| OP-SN angle;U1-PP;U6-PP;L1-MP;L6-MP;SND angle;S-Go/ N-Me; | — |
Countries
China
Contacts
Public ContactLiu Yuehua
Shanghai Stomatological Hospital
Outcome results
None listed