severe skeletal malocclusion
Conditions
Interventions
Angle class II malocclusion:Simultaneous corticotomy and bone graft on the labial and lingual sides of the mandibular anterior teeth
Angle class III malocclusion:Simultaneous corticotomy and bone graft on the labial and lingual sides of the mandibular anterior teeth
Sponsors
Peking University School of Stomatology
Eligibility
Sex/Gender
All
Age
18 Years to 40 Years
Inclusion criteria
Inclusion criteria: ? Age 18-40 years old, general health; ? Patients with skeletal class II and III malocclusion, has informed consent to accept orthodontic-orthognathic combined treatment; ? Periodontal health, or mild gingivitis/periodontitis with healthy or controlled periodontium; ? CBCT images showed that more than two-thirds of the root length of the anterior teeth were close to the labial and lingual side of the cortex of alveolar bone, or the thickness of either the labial or lingual alveolar bone was less than 0.5mm. ? Clinical examination showed that the profil of teeth roots exposed obviously, which can be touched underneath the labial gingiva; ? Consent to participate in the study.
Exclusion criteria
Exclusion criteria: Exclusion criteria: ? Pregnant or lactating women; ? Patients with tumors and serious systemic diseases; ? Acute inflammation of oral cavity and maxillofacial area; ? Heavy smokers (>10 cigarettes/day); ? Patients with moderate or severe periodontitis, or uncontrolled gingivitis or mild periodontitis; ? Patients with congenital cleft lip and palate; ? Patients with any mental disorder or any reason that can't cooperate with the trearment process; ? History of previous orthodontic treatment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| thickness of the alveolar bone ; | — |
Secondary
| Measure | Time frame |
|---|---|
| keratinized gingival width on the buccal side;probing depth;Gingival biotype; | — |
Countries
China
Contacts
Public ContactHou Jianxia
Department of Periodontology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digi
Outcome results
None listed