Actively Recruiting
Study the Effect of Upper Expansion Appliances on Lower Jaw Forward Projection/Growth
Led by University of Alberta · Updated on 2026-01-07
60
Participants Needed
1
Research Sites
409 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Young children with backward positioned lower jaw/chin will be recruited to have an upper jaw expansion appliance. Previous research showed that the use of similar appliances can lead to lower jaw forward growth. 60 young children aged 9-11 will be recruited to have either active or non-active Wilson type upper arch expansion appliance. Patients will have special x-ray (Cone Beam computed tomography) before and after treatment (after 9 months) of starting the treatment. After participation, routine orthodontic treatment will be continued.
CONDITIONS
Official Title
Study the Effect of Upper Expansion Appliances on Lower Jaw Forward Projection/Growth
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Class II skeletal due to lower jaw backward projection
- Class II malocclusion
- Early mixed dentition with all first permanent molars erupted and all erupting upper and lower permanent incisors
You will not qualify if you...
- Current orthodontic treatment
- Growth problems such as craniofacial syndromes
AI-Screening
AI-Powered Screening
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Trial Site Locations
Total: 1 location
1
University of Alberta
Edmonton, Alberta, Canada, T6G 2R3
Actively Recruiting
Research Team
D
Dr. Tarek El-Bialy, PhD
CONTACT
R
Rabia Njie, BDS
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
SINGLE_GROUP
Primary Purpose
TREATMENT
Number of Arms
2
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