Skeletal class III malocclusion
Conditions
Interventions
Mandibular posterior teeth on the contralateral side in patients with severe asymmetry:None
Mandibular posterior teeth on the deviated side in patients with severe asymmetry:None
Mandibular posterior teeth on the (nominally) deviated side in patients with basically symmetrical mandible:None
Sponsors
Peking University Hospital of Stomatology
Eligibility
Sex/Gender
All
Age
16 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.Aged >=16 years; 2.Mongolian; 3.Skeletal Class III (ANB angle -3.6 mm); 4.Anterior crossbite or edge-to-edge position; 5.Permanent dentition, mandibular premolars, and first molars exist; 6.Using fixed orthodontic techniques to complete pre-surgical orthodontic treatment.
Exclusion criteria
Exclusion criteria: 1.History of previous orthodontic treatment involving tooth extraction or orthognathic surgery; 2.Diagnosis of progressive periodontitis or pre-treatment alveolar bone loss exceeding one-third of the root length; 3.Crowding exceeding 3 mm in the posterior segments; 4.Mandibular premolars or first molar with crown or large area filling; 5.Furcation involvement in mandibular premolars or first molars; 6.Syndrome related to craniofacial development such as cleft lip and palate or other systemic diseases.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Thickness of the alveolar bone; | — |
Secondary
| Measure | Time frame |
|---|---|
| Tooth inclination; | — |
Countries
China
Contacts
Public ContactShengjie Cui
Peking University Hospital of Stomatology
Outcome results
None listed