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Study the Effect of Upper Expansion Appliances on Lower Jaw Forward Projection/Growth

NCT03286569 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2026-01-07

No results posted yet for this study

Summary

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

  • Overbite (Excessive) Horizontal

Interventions

DEVICE

Upper arch Wilson quadhelex appliance

Upper arch Wilson quadhelex appliance

Sponsors & Collaborators

  • University of Alberta

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
SINGLE_GROUP

Eligibility

Min Age
9 Years
Max Age
11 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2019-04-01
Primary Completion
2027-02-01
Completion
2027-02-01
FDA Device
Yes

Countries

  • Canada

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03286569 on ClinicalTrials.gov