Improving breathing in children with orthodontic treatment
Official title: Skeletal, Dental and Upper Airway Changes in Skeletal Class II Division 1 Patients With the Constricted Maxilla (8-14 Years Old) Treated With Twin Block and Hyrax, Evaluated Through Pressure Drop Experimental Analysis.
Run by University of Alberta · NCT04190953 · Data updated 2026-11-12
This study is testing if certain orthodontic treatments can help children with breathing problems by improving their airway size and making it easier to breathe.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 8 Years to 14 Years |
| Sex | All |
| Enrollment | 90 (estimated) |
| Sponsor | University of Alberta Academic / other |
| Locations | 1 site (Edmonton, Alberta) |
| Status | Recruiting |
| Started | February 18, 2020 |
| Main results expected | March 1, 2027 |
| Study ends | March 1, 2027 |
| Registry record updated | March 18, 2026 |
| Trial ID | NCT04190953 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are children aged 8-14 with skeletal class II division 1 malocclusion and maxillary constriction.
✕Probably not a fit
Patients with syndromic conditions, previous orthodontic treatment, or severe oral health issues may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This research investigates how orthodontic treatments, specifically mandibular advancement and maxillary expansion, can enhance upper airway volume and reduce respiratory effort in children with class II malocclusion. The study will analyze changes in airway dimensions and airflow resistance using a randomized crossover controlled trial design involving 90 children aged 8-14. Participants will be divided into groups receiving different treatment sequences, and their respiratory capabilities will be assessed using portable polysomnography. The goal is to establish a correlation between orthodontic interventions and improved breathing outcomes.
Why it matters
Potential benefit: If successful, this study could lead to improved breathing and reduced respiratory issues in children undergoing orthodontic treatment.
How similar studies have gone: Previous studies have indicated a positive relationship between orthodontic interventions and airway improvements, suggesting this approach has potential based on existing evidence.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * children between the ages 8-14 years old (8-12 years old girls and 9-14 years old boys), presenting skeletal class II division 1 malocclusion with maxillary constriction Exclusion Criteria: * syndromic patients, previous ortho history, non-compliance, severe oral health issues (cavities, poor oral hygiene)
Where it's running
-
University of Alberta
Edmonton, Alberta, Canada Recruiting
Study contacts
- Principal investigator: Silvia G Capenakas, MSc — University of Alberta
- Study coordinator: Manuel Lagravere, PHD
- Email: manuel@ualberta.ca
- Phone: 7804927696
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.