malocclusion
Conditions
Interventions
experimental group:minimally invasive corticotomy assisted orthodontics
control group:traditional orthodontics
Sponsors
Shanghai Stomatological Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1. Patients aged 18-40 years old, male and female, who can receive minimally invasive periodontal surgery; 2. Good oral condition ( periodontal health or alveolar bone absorption less than 10% of patients with mild periodontitis, no periapical infection and unfilled caries); 3. Patients who need to extract 4 premolars during orthodontic treatment; 4. Complete development (judged by the shape of cervical vertebra through lateral radiographs); 5. Sign informed consent voluntarily.
Exclusion criteria
Exclusion criteria: 1. exclude a history of temporomandibular joint, systematic diseases, systemic metabolic diseases, excluding laser, radiation workers; 2. exclude the presence of bone island, osteoma, apical cyst, root resorption and root exposure in the tooth movement area; 3. exclude alveolar bone absorption more than 10% of patients with periodontitis; 4. exclude gingival retract 2mm 5. exclude those who have a long history of smoking; 6. exclude abnormal bone metabolism (including taking anti-bone absorption drugs, hormone drugs, immunosuppressant); 7. exclude mental disorders or movement disorders; 8. pregnant women are excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Orthodontic index; | — |
Secondary
| Measure | Time frame |
|---|---|
| Periodontal index;Radiographic index;patient-centered index; | — |
Countries
China
Contacts
Public ContactYang Yanjing
Shanghai Stomatological Hospital
Outcome results
None listed