RecruitingNot ApplicableNCT07301918

Leaf Expander Versus Hyrax Expander in Mixed Dentition Patients With Posterior Crossbite.

Evaluation of the Effects of the Leaf Expander Versus Hyrax Expander in Mixed Dentition Patients With Posterior Crossbite: A Randomized Clinical Trial.

Sponsor

Cairo University

Enrollment

30 participants

Start Date

Oct 1, 2025

Study Type

INTERVENTIONAL

Conditions

Posterior Crossbite Maxilla; Hypoplasia

Summary

Design: Two-arm parallel randomized clinical trial in mixed dentition (6-12 years). Arms: (1) 9 mm, 900 g leaf expander; (2) 9 mm Hyrax expander. Follow-up: From appliance insertion → completion of intended expansion → 6-month retention. Primary outcome: Pain perception during the first 7 days post-insertion (daily patient-reported scale). Secondary outcomes: Skeletal and dental changes on CBCT.

Eligibility

Min Age: 6 YearsMax Age: 12 Years

Plain Language Summary

Simplified for easier understanding

This clinical trial is studying a medical device called Hyrax expander and a medical device called The Leaf expander for people with maxilla; hypoplasia and posterior crossbite. The study is currently recruiting participants at 1 location.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DEVICEThe Leaf expander

The Leaf expander incorporates Nickel Titanium springs that will not require the patients' home activation

DEVICEHyrax expander

Hyrax expander incorporates a screw that requires the patients' home activation

Locations(1)

Cairo University

Cairo, Egypt

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NCT07301918