Skip to content

Comparing Two Orthodontic Expanders for Better Breathing and Jaw Growth in Children

Sleep Apnea | Children | Orthodontics

This study aims to compare two orthodontic expanders—Invisalign Palatal Expander (IPE) and Hyrax Expander (RPE)—to see which is more effective in improving nasal breathing, sleep quality, and jaw growth in children with a narrow upper jaw (maxillary transverse deficiency). The study will measure airflow, sleep patterns, and jaw changes over a year. By understanding how these devices affect breathing and jaw development, this research will help orthodontists choose the best treatment for children who need palatal expansion.

null

Participation Requirements

  • Sex:

    Any

  • Eligible Ages:

    6 to 14

Participation Criteria

Inclusion Criteria:
Children who:

Are between 6-14 years old
Have a narrow upper jaw (maxillary transverse deficiency) diagnosed by an orthodontist
Have fully erupted first molars
Have not had previous orthodontic treatment
Are at high risk for sleep breathing issues (e.g., snoring, mouth breathing)
Have parents/guardians who can give consent
Exclusion Criteria:
Have craniofacial conditions (e.g., cleft palate, genetic syndromes)
Have a history of previous orthodontic treatment
Have a medical condition that affects orthodontic treatment
Have temporomandibular joint (TMJ) disorders
Need tooth extractions or jaw surgery as part of treatment

Study Location

University of Alberta
University of Alberta
Edmonton, Alberta
Canada

Contact Study Team

Study Sponsored By
University of Alberta
Participants Required
More Information
Study ID: Pro00150919