Skeletal Class II malocclusion
Conditions
Interventions
Adult group:Invisible functional orthodontic appliance
Adolescents group:Invisible functional orthodontic appliance
Children group:Invisible functional orthodontic appliance
Sponsors
Department of Orthodontics, Hospital of Stomatology, Jilin University
Eligibility
Sex/Gender
All
Age
8 Years to 34 Years
Inclusion criteria
Inclusion criteria: ? No obvious symptoms of temporomandibular joint disease were found in clinical examination; ? Angle class II, skeletal class II (ANB>4 °), mandibular retraction; ? Invisible correction without bracket was used in the whole process; ? During the treatment, the appliance was guaranteed to be worn for more than 22 hours every day, and the patient was instructed to wear the appliance for dinner; ? Follow the doctor's advice, return to the hospital on time, and complete the entire functional correction course.
Exclusion criteria
Exclusion criteria: ? Poor periodontal condition; ? There are chronic rhinitis, tonsil hypertrophy and other upper airway diseases; ? Poor compliance; ? Patients with unknown consent; ? There is a history of orthodontic treatment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Cephalometric measurement; | — |
Secondary
| Measure | Time frame |
|---|---|
| Arch width;Morphology and position of the condyle;Upper airway related indicators; | — |
Countries
China
Contacts
Public ContactZhu Xianchun
Department of Orthodontics, Hospital of Stomatology, Jilin University
Outcome results
None listed