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3D-Printed tooth fillings could offer kids a better option for weak molars

NCT ID NCT07718191

Disease control Sponsor: Cairo University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time

Summary

This study tests whether 3D-printed hybrid resin fillings work better than standard composite fillings for children aged 7 to 11 who have a condition called molar-incisor hypomineralization (MIH), which causes weak, chalky molars. The trial measures pain before and after treatment and checks how well the fillings hold up over 6 and 12 months. Forty children will receive either a 3D-printed or a direct filling to see which approach leads to better outcomes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
3D-printed hybrid resin restoration or direct resin composite filling
What this could lead to
If successful, 3D-printed fillings could offer a more durable and comfortable option for treating children with weak, chalky molars.
What could go wrong
This is a small, early-stage trial with only 40 participants, so results may not apply to all children. The 3D-printed fillings may not outperform standard fillings in the long run.

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 40 people

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

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Dec 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

7 to 11 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: 1. Participants aged from 7 years to 11 years 2. MIH-TNI 2 or 4 3. No past dental treatment for the hypomineralized first permanent mandibular molars. 4. Caries lesions that include the occlusal surface. Exclusion Criteria: 1. The presence of systemic disease, physical or mental disability. 2. Any potential confounding enamel defects i.e., amelogenesis imperfecta. 3. Uncooperative children. 4. A history of allergic reactions to local anesthetics or some components of restorative materials 5. History of spontaneous pain. 6. Presence of clinical or radiographic signs of pulp necrosis (Fistula/abscess, internal or external root resorption, mobility of the tooth, and swelling).

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Conditions

The condition(s) this trial relates to.

Molar Hypomineralization

As listed by the trial registrant

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

Molar-incisor hypomineralization (MIH)

How to take part

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  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

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  2. A doctor treating you

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