3D printing orientation and layer thickness for maxillary complete dentures
Official title: Clinical and Laboratory Assessment of 3D Printing Orientation and Film Thickness on the Accuracy and Patient Satisfaction of Maxillary Complete Dentures
Run by Tanta University · NCT07740278 · Data updated 2026-11-12
This study tests how different 3D printing angles and layer thicknesses affect denture accuracy and patient satisfaction in people who need full upper dentures.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 50 Years to 70 Years |
| Sex | All |
| Enrollment | 15 (estimated) |
| Sponsor | Tanta University Academic / other |
| Locations | 1 site (Tanta, Gharbia Governorate) |
| Status | Recruiting |
| Started | August 8, 2026 |
| Main results expected | February 1, 2027 |
| Study ends | March 1, 2027 |
| Registry record updated | July 31, 2026 |
| Trial ID | NCT07740278 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 50–70 with complete upper and lower dentures who are in good health and have adequate inter-arch space.
✕Probably not a fit
Patients with significant oral diseases, parafunctional habits, or temporomandibular disorders may not benefit from these specific printing parameter optimizations.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
In this randomized crossover trial, completely edentulous adults will receive two maxillary dentures printed with the same orientation but different layer thicknesses (50 μm and 100 μm) across three build orientations (0°, 45°, 90°). Each participant wears each denture for three months, allowing comparison of trueness, dimensional accuracy, and patient-reported outcomes between printing settings. The primary outcome is how closely the denture bases match the CAD models, measured via STL comparisons. The study will help identify printing parameters that optimize denture fit and comfort.
Why it matters
Potential benefit: If successful, the findings could guide 3D printing practices to produce more accurate, better-fitting dentures and improve patient satisfaction.
How similar studies have gone: Previous work in digital denture fabrication has shown that printing parameters can affect fit and patient outcomes, but this exact orientation-by-layer-thickness crossover design is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Completely edentulous patients with good local and systemic health. 2. Patients age ranging from 50 to 70 years old. 3. Patients with adequate inter-arch space. 4. Patients with good neuromuscular control. Exclusion Criteria: 1. Patients with any oral diseases which may affect denture construction 2. Patients with oral parafunctional habits. 3. Patients with tempro-mandibular disorders
Where it's running
-
Faculty of Dentistry, Tanta University
Tanta, Gharbia Governorate, Egypt Recruiting
Study contacts
- Principal investigator: noha Mamdouh Hamed elkafoury, BDS, MSc — Faculty of Dentistry, Tanta University, Egypt
- Study coordinator: noha Mamdouh Hamed elkafoury, BDS, MSc
- Email: nohaelkafoury@dent.tanta.edu.eg
- Phone: +201271040849
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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.