Clear Orthodontic Expander Versus Hyrax

Recruiting now · Not applicable

Conditions studied: Malocclusion, Narrow Maxilla

In brief

This study will be conducted to evaluate the effectiveness of a clear expander fabricated from 2-mm biocompatible polyethylene terephthalate glycol (PETG) thermoforming material integrated with an expansion screw in achieving dental and skeletal expansion in adolescent patients, compared with the conventional Hyrax expander.

Key facts

Study ID

NCT07362160

Run by

University of Baghdad

People needed

40

Starts

2026-02-01

Expected to finish

2027-02-01

Last updated by the study team

2026-04-22

Who can join

Age: 10 and older, up to 14. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Patients' age at the start of treatment will range from 10-14 years.
• Unstable unilateral or bilateral posterior crossbite due to maxillary constriction.
• The first molars are fully erupted.
• Good oral health free from caries and periodontal problems at the start of treatment.
• Good general health.

You may not qualify if…

• Patients with obvious facial asymmetry.
• Patients with orofacial cleft.
• Patients with previous orthodontic treatment.
• Patients with bad oral habits.
• Patients with active periodontal disease.

Where it is running

• University of Baghdad/Collage of Dentistry — Baghdad, Al-Rusafa, Bab Al-moadham, Iraq (enrolling)

Full record on ClinicalTrials.gov

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