Leaf Expander Versus Hyrax Expander in Mixed Dentition Patients With Posterior Crossbite.
Recruiting
N/A
Interventional Study
Posterior Crossbite
Maxilla; Hypoplasia
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
At a Glance
- Age
- 6 – 12
- Sex
- Any
- Study type
- Interventional
- Purpose
- Other
- Participants needed
- 30 (estimated)
- Sponsor
- Cairo University · Other
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About This Trial
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…
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Male and female patients
* Mixed dentition stage
* Unilateral or bilateral posterior crossbite.
* Patients in prepubertal stage with cervical vertebral maturation stage 1-3.
* Fully erupted maxillary and mandibular permanent first molars.
* Skeletal class I or II.
Exclusion C…
Contacts
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