Functional treatment of Class II division 1 malocclusions Oral Health Class II division 1 malocclusion
Conditions
Interventions
The study will have 2 parallel arms. One group will be treated with the removable twinblock appliance and the other group will be treated with fixed twinblock appliance. Following completion of the Tw
Sponsors
University of Dundee
Eligibility
Sex/Gender
All
Age
9 Years to 14 Years
Inclusion criteria
Inclusion criteria: 1. Class II division 1 malocclusion 2. No history of active orthodontic treatment 3. Overjet > 6mm (IOTN 4a/5a) 4. Age 9 - 14 years 5. Child & parent/carer who are able to assent and consent, respectively
Exclusion criteria
Exclusion criteria: 1. Overjet 1 missing tooth per quadrant) 4. Subjects taking growth hormone or endocrine disorders 5. Suspected or identifiable syndromes 6. Subjects with cleft lip and palate 7. Anterior open bite
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Overjet correction measured by clinical measurement in millimetres at baseline, 3 months, 6 months, 9 months, end of twinblock treatment and end of fixed orthodontic treatment | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Skeletal contributions to overjet correction by radiographic measurement (lateral cephalogram) at baseline, end of twinblock treatment and towards end of fixed orthodontic treatment 2. Dental contributions to overjet correction by 3D model measurements at baseline, end of twinblock treatment and end of fixed orthodontic treatment 3. Soft tissue contributions to overjet correction by 3D stereophotogrammetric measurements at baseline, end of twinblock treatment and end of fixed orthodontic treatment 4. Patients’ perception and experience by using three questionnaires to assess the perception of fixed orthodontic therapy before, during and after treatment | — |
Countries
Scotland, United Kingdom
Contacts
Public ContactGautham Sivamurthy
Outcome results
None listed