malocclusion
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: The patients who planned to receive surgery-first treatment in the department of orthodontics or department of orthognathic surgery, Peking University stomatology hospital. 1. Aged 18 to 35 years old, male or female; 2. U1/SN 95 to 115 degree, L1/MP 80 to 100 degree; 3. The crowding degree of upper and lower arch was <=5mm; 4. The width of upper and lower dental arch was basically matched; 5. The depth of Spee curve of lower dentition <=3mm; 6. At least 3 stable occlusal contact points after surgery.
Exclusion criteria
Exclusion criteria: 1. Pregnant or lactating women; 2. Patients with moderate or severe periodontitis or uncontrolled periodontitis; 3. Suffering from tumor and serious systemic diseases; 4. Cleft palate or other maxillofacial abnormalities.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| accuracy of post-surgery occlusion displacement and rotation;stability of maxilla;the stability of mandible;stability of maxilla;stability of mandible; | — |
Countries
China
Contacts
Peking University Hospital of Stomatology