3D printed molds guide the art of invisible Front-Tooth repair
NCT ID NCT07813949
First seen Sep 10, 2026 · Last updated Sep 11, 2026 · Updated 1 time
Summary
Researchers at Al-Azhar University compare three ways to build up resin fillings on broken front teeth: a single-color approach, a multi-color layered approach, and a single-shade structurally colored composite. Dentists shape each restoration using 3D printed casts of the tooth. The trial enrolls 27 adults with Class IV fractures in permanent front teeth and follows them for 12 months to check color match, how well the filling holds up, and how satisfied patients are with the result.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- resin composite layering techniques guided by 3D printed casts
- What this could lead to
- If one layering method matches natural teeth better, dentists could use it to make front-tooth repairs look more seamless.
- What could go wrong
- This is a small, single-center study of 27 people, so results may not apply broadly. Fillings can chip, discolor, or need replacement over time.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 27 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2024
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 50 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Male or female patients aged 18 years or older. * Good oral hygiene and healthy periodontal status. * Presence of sound adjacent teeth and opposing dentition. * Patients requiring direct Class IV composite restoration in permanent anterior teeth. * Cooperative patients willing to comply with the follow-up visits (12 months). Exclusion Criteria: * Patients with poor oral hygiene or severe systemic diseases. * Teeth with pulpitis, periapical lesions, or requiring endodontic treatment. * Presence of severe bruxism, heavy parafunctional habits, or malocclusion. * Pregnant or lactating females. * Heavy smokers or patients with active periodontal disease.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Faculty of Dental Medicine for Girls, Al-Azhar University
Cairo, Cairo Governorate, 11754, Egypt
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Other studies related to the condition(s) this trial covers.
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