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Battle of the crowns: custom vs. prefab for Kids' teeth

NCT ID NCT07704151

Disease control Sponsor: Jordan University of Science and Technology Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 15, 2026 · Last updated Jul 16, 2026 · Updated 1 time

Summary

This trial tests whether custom-made zirconia crowns hold up better than prefabricated ones in children's first permanent molars. Fifty children with badly decayed or damaged molars will receive one type of crown, and researchers will track retention, chipping, gum health, and fit over time. The goal is to find the most reliable option for restoring young teeth.

What this could mean

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

Active substance
zirconia crowns (custom-made or prefabricated)
What this could lead to
If custom-made crowns prove more durable, this could improve dental restoration options for children with damaged molars.
What could go wrong
This is a small, early-stage trial with only 50 participants, so results may not apply to all children. Crowns may still chip or loosen 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

About 50 people

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

Started

Aug 2025

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 13 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Medically fit or with mild systemic illness (ASA I or II). * Children who assent to take part in the study with a valid parental consent * Children who have at least one first permanent molar requiring a full-coverage restoration (indications for placing a crown include: badly destructed/carious molars, or teeth affected by molar-incisor hypomineralisation (MIH)) * Maxillary or mandibular fully erupted first permanent molars, regardless of the stage of root development. * A cooperative child that accepts dental treatment (Frankle Behaviour Rating Scale #3 or 4). * Capable of attending all follow-up sessions. Exclusion Criteria: * Patients outside the required age range * Parents/child not willing to participate. * Medically compromised patients * Partially erupted permanent first molars. * Patients with severe malocclusion that prohibits the provision of crowns * First permanent molars are not indicated for full coverage restorations. * First permanent molars are indicated for extraction. * Patients with bruxism or parafunctional habits. * Uncooperative children (Frankle Behaviour Rating Scale #1 or 2)

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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.

Zirconia crowns

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Jordan University of Science and Technology

    Irbid, Jordan

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