3D-printed bone-borne maxillary expander for young adults
Official title: The The Effect of 3D Printed Framework Bone-Borne Rapid Maxillary Expander in Young Adults: a CBCT Study
Run by Mansoura University · NCT07331207 · Data updated 2026-11-12
This trial will test a 3D‑printed, bone‑anchored palatal expander to see if it can widen the midpalatal suture and correct a narrow upper jaw in adults aged 18 to 30.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 30 Years |
| Sex | All |
| Enrollment | 16 (estimated) |
| Sponsor | Mansoura University Academic / other |
| Locations | 1 site (Al Mansurah) |
| Status | Recruiting |
| Started | June 20, 2025 |
| Main results expected | June 20, 2026 |
| Study ends | July 1, 2026 |
| Registry record updated | January 9, 2026 |
| Trial ID | NCT07331207 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults 18–30 with transverse maxillary deficiency who have intact first and second upper premolars and first upper molars, good periodontal health, and no prior orthodontic treatment.
✕Probably not a fit
Patients under 18, those missing required upper teeth, those with poor oral hygiene or periodontal disease, significant dentofacial anomalies or systemic illness, or pregnant individuals are unlikely to benefit or are ineligible.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Researchers will use intraoral scans and CBCT images to design a custom 3D‑printed framework that attaches to four miniscrews placed in the palate. After local anesthesia, four OrthoEasy Pal miniscrews (about 10 mm long, 1.7–1.8 mm diameter) will be placed and the device secured to them, with patients turning the screw once per day (0.25 mm per turn). CBCT will be taken before treatment and again three months after the first activation to measure midpalatal suture width, tooth inclination, and buccal bone thickness using defined anatomic landmarks. The planned sample size is 16 adults aged 18–30 based on a prior effect-size estimate.
Why it matters
Potential benefit: If effective, this approach could provide predictable skeletal expansion in young adults while reducing dental tipping and preserving buccal bone.
How similar studies have gone: Miniscrew-assisted and bone‑borne palatal expanders have shown promising results in skeletally mature patients, though fully 3D‑printed, purely bone‑borne framework designs are less extensively studied.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Transverse maxillary deficiency with or without crossbite; who requires maxillary expansion * Age: (18 to 30) years. * presence of first and second upper premolars and first upper molars * No previous orthodontic treatment. * Good oral hygiene and healthy periodontal tissue. * No significant dentofacial anomalies, any bone defects, or systemic disease. * Not being pregnant. Exclusion Criteria: * previous orthodontic treatment. * significant dentofacial anomalies, any bone defects, or systemic disease. * pregnant. * bad oral hygiene and healthy periodontal tissue. * loss first and second upper premolars and first upper molars * growing patients
Where it's running
-
faculty of dentistry- Mansoura University
Al Mansurah, Egypt Recruiting
Study contacts
- Study coordinator: Mohammad Radwan Alrefai, dentist
- Email: mhmd1alrifai@gmail.com
- Phone: 01029054360
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.