Malocclusion
Conditions
Interventions
Asymmetrical skeletal Class III malocclusion:None
Symmetrical skeletal Class III malocclusion:None
Sponsors
The First Affiliated Hospital of Harbin Medical University
Eligibility
Sex/Gender
All
Age
16 Years to No maximum
Inclusion criteria
Inclusion criteria: Age>=16 years; permanent dentition, crowded upper and lower dentition < 4 mm; No prior orthodontic or orthognathic treatment; Skeletal class III (ANB angle< 0°; Wits <=-3.6mm) anterior teeth are crossbited or counterbited; The pre-treatment CBCT data were complete and the images were clear
Exclusion criteria
Exclusion criteria: Congenital missing teeth, retained primary teeth, or impacted teeth; Severe crowding of the back teeth; presence of restorations in the posterior region; maxillary sinuses distinctly bulge into the cheeky or lingual alveolar bone of the maxillary posterior teeth; severe periodontitis; Presence of congenital or acquired diseases that affect facial symmetry, such as unilateral condylar hypertrophy and tumors; Has a history of orthodontic or orthognathic treatment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Mesiodistal inclination ;Buccolingual inclination;Buccolingual alveolar bone thickness; | — |
Countries
China
Contacts
Public ContactZhang Miaomiao
The First Affiliated Hospital of Harbin Medical University
Outcome results
None listed