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Study identifier: NCT07301918 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

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

Condition: Posterior Crossbite · Maxilla; Hypoplasia  ·  Sponsor: Cairo University

PhaseNA
Planned participants30
Who can joinAll sexes, 6 Years to 12 Years
Healthy volunteersNo

About this study

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.

This description comes directly from the study's public registry record.

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Locations (1)

Cairo UniversityCairo, EgyptRecruiting

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Source record: clinicaltrials.gov/study/NCT07301918