Orthodontic Myofunctional Braces, Skeletal / malocclusion Class II div (i), Sub speciality of dentistry Oral Health
Conditions
Interventions
The intervention is an orthodontic brace used to correct the small lower jaw and prominent upper teeth which is called a 'twinblock'. This brace has been in use for over 30 years and is used widely on
Sponsors
Tameside Hospital NHS Foundation Trust (UK)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Girls who are nearing their 11th birthday 2. Boys who are nearing their 12th birthday 3. Overjet (upper teeth prominence) of 7mm or more 4. Skeletal class II jaw pattern (a lower jaw which is set back) 5. White Caucasian children only 6. Written parent and child consent
Exclusion criteria
Exclusion criteria: 1. Girls older than 12.5 years 2. Boys older than 13.5 years 3. Cleft lip or palate or craniofacial syndrome 4. Lower jaw asymmetry 5. Muscular dystrophy 6. General health precludes treatment 7. Presence of medically diagnosed growth excess or deficiency 8. Not dentally fit - presence of tooth decay or gum disease 9. Previous orthodontic treatment
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| 1. Self esteem - Piers Harris 2002 questionnaire 2. Psychosocial impact OASIS (Mandall et al 200) validated questionnaire 3. Oral health quality of life questionnaire (Jokovic et al 2002) | — |
Primary
| Measure | Time frame |
|---|---|
| 1. Facial and dental movements 2. Study models plaster casts to measure tooth movements 3. X-ray to measure facial/jaw growth | — |
Countries
United Kingdom
Outcome results
None listed