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3D-Printed fillings face off against traditional ones in tooth trial

NCT ID NCT07429747

Disease control Sponsor: Ahmed Reda Abd EL Rahman Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study will test whether 3D-printed fillings work as well as standard bulk-filled resin ones for large cavities in back teeth. About 50 adults aged 22 to 45 with deep decay in a molar will receive one of the two filling types. Researchers will check the fillings' strength, fit, and appearance over time to see which option lasts longer and is more cost-effective.

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

About 50 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Oct 2027

An estimate. End dates often move.

Lead sponsor

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

22 to 45 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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: Patient-related: * Adults aged 22 to 45 years. * Low to moderate caries risk. * Normal occlusion. * No signs or symptoms of temporomandibular joint disorders. * Satisfactory oral hygiene. * Medically fit to receive routine restorative dental treatment. Lesion-related: * Permanent molar requiring a compound Class II restoration. * Primary carious lesion classified as ICDAS score 5. * Presence of an adjacent tooth and a sound opposing tooth in occlusion. * No clinical signs or symptoms of irreversible pulpitis in the involved, adjacent, or opposing teeth. * No radiographic evidence of periapical pathology. Exclusion Criteria: Patient-related: * Bruxism. * Poor cooperation. * Inability or unwillingness to attend follow-up visits. * Anticipated travel during the study period. * Poor oral hygiene. * Chronic or advanced periodontitis. * Known allergy to any study materials. * Pregnant or breastfeeding women. Lesion-related: * Teeth with visible fractures or cracks. * Rampant caries. * Defective restorations on adjacent or opposing teeth. * Atypical extrinsic staining that may interfere with evaluation. * Radiographic signs of apical pathology.

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Conditions

The condition(s) this trial relates to.

dental caries

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

3D printing Bulk fill Class II lesions Composite restorations Proximal cavities of posterior teeth

How to take part

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  1. The official record

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More trials for these conditions

Other studies related to the condition(s) this trial covers.