Three-dimensionally Printed Hyrax Versus Conventional Hyrax for Maxillary Arch Expansion in Adolescents

NCT07411092 · tracked via the Priya Life Science Egypt tracker

Sponsor

Ain Shams University

Phase

Not applicable

Started

2025-08-01

Last updated

2026-02-13

Condition(s) studied

Transverse Maxillary DeficiencyMaxillary Expansion

Investigational drug(s) / intervention(s)

Three dimensionally printed hyrax expanderConventionally Fabricated Hyrax Expander

Three dimensionally printed hyrax expander: Group A : A 3D-printed Hyrax expander designed for rapid maxillary expansion in orthodontic treatment. The device is manufactured using additive manufacturing technology for a customized fit.

Conventionally Fabricated Hyrax Expander: Group B: A conventionally fabricated Hyrax expander used for rapid maxillary expansion . The device is made using traditional laboratory techniques.

Study summary

This clinical trial aims to compare the skeletal and dental effects of conventional Hyrax expanders and 3D-printed Hyrax expanders in adolescent patients with maxillary transverse deficiency. Using cone-beam computed tomography (CBCT) and digital models, the study evaluates the precision, customization, and treatment outcomes of both appliance types to inform evidence-based orthodontic treatment planning.

Eligibility

Sex

ALL

Min age

12 Years

Max age

17 Years

Healthy volunteers

Accepted

Inclusion Criteria: 1. Patients aged between 12 to 17 years. 2. Skeletal age ranges from CVMS 3 to CVMS 5. 3. Skeletal maxillary transverse deficiency with/without crossbite. 4. Cooperative and able to attend follow-up visits. Exclusion Criteria: 1. Previous orthodontic treatment. 2. Craniofacial syndromes, or cleft lip and/or palate. 3. Patients with vertical growth pattern. 4. Very bad oral hygiene and active periodontal disease. 5. Vulnerable groups such as individuals with cognitive impairments or intellectual disabilities and individuals with severe mental health disorders.

Primary outcome measure(s)

Amount of mid-palatal suture opening. — Three weeks
The amount of suture separation measured in millimeters in the axial plane through CBCT X-ray

Trial sites (1)

Facility	City	Region	Status
Faculty of dentistry, Ain Shams univeristy	Cairo	Cairo Governorate	Recruiting

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Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07411092 on ClinicalTrials.gov ↗ ← All trials in Egypt