Skeletal Malocclusion
Conditions
Interventions
Experimental group:Labial and lingual augmented corticotomy
Positive control group:Anterior labial periodontal bone increment
Blank control group:None
Sponsors
Peking University School and Hospital of Stomatology
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: 1. Aged from 18 to 40 years, in good health; 2. Patients with osteogenic Class II and III malocclusion have given informed consent to receive orthodontic-orthognathic combined treatment; 3. Patients with periodontal health or controlled gingivitis and mild periodontitis; 4. Conical beam CT imaging was used to observe and measure the thickness of labial or lingual alveolar bone in the lower anterior dental region less than 0.5mm or the width of the basal bone in the apical region of the lower anterior tooth less than the width of the root; 5. In clinical examination, the anterior tooth was obviously exposed to the root, and the root protrusion could be palpable; 6. Considering the distance and range of tooth movement required by orthodontic treatment, the orthodontic treatment teeth requiring lingual recovery or labial tilt of lower anterior incisor margin in the process of reparation for osteogenic Class II and III orthodontic treatment were preferentially treated with lingual periodontal bone increment surgery; 7. Agree to participate in the study.
Exclusion criteria
Exclusion criteria: 1. Pregnant or lactating patients; 2. Patients with tumors and systemic serious diseases; 3. Acute oral and maxillofacial inflammation; 4. Patients with moderate or severe periodontitis or uncontrolled gingivitis or mild periodontitis; 5. Patients with congenital cleft lip and palate, with obvious asymmetry in facial and maxillary development; 6. Heavy smokers (>10 cigarettes/day); 7. Those who suffer from mental illness or for other reasons cannot cooperate with medical treatment; 8. The distance between the upper mental spine and the apical tip is less than 2mm, and the risk of hyoid incremental surgery is greater; 9. Patients with abnormal coagulation function and chemotherapy should take anti-osteoporosis drugs within 3 years.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| alveolar bone thickness and height;periodontal ligament area;alveolar bone volume;orthodontic teeth movement;periodontal clinical examination;fenestration and dehiscence; | — |
Countries
China
Contacts
Public ContactLi Xiaotong
Peking University School and Hospital of Stomatology
Outcome results
None listed