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Can a crown save a decayed baby tooth better than pulling it?

NCT ID NCT07719478

Disease control Sponsor: Passant Nagy 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 22, 2026 · Last updated Jul 23, 2026 · Updated 1 time

Summary

This study compares two ways to handle severely decayed front baby teeth in children aged 3 to 5: restoring them with zirconia crowns or simply extracting them. Researchers want to see which approach leads to better quality of life, parental satisfaction, child self-image, and speech development. The goal is to provide clearer evidence for dentists and families facing this common childhood dental problem.

What this could mean

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

Active substance
zirconia crown restoration or extraction of primary anterior teeth
What this could lead to
If zirconia crowns prove better than extraction, this could offer a way to preserve baby teeth, potentially improving children's quality of life, self-esteem, and speech development.
What could go wrong
This is a small, non-randomised study, so results may not apply broadly. Crowns require general anaesthesia and may still fail, requiring later extraction.

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 60 people

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

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

Aug 2026

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

3 to 5 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: * Children aged 3-5 years * Presence of one or more decayed primary anterior teeth * Written informed consent from parent or legal guardian Exclusion Criteria: * Craniofacial anomalies or genetic syndromes * Diagnosed developmental delay or speech disorders * Previous speech therapy * Systemic disease contraindicating general anaesthesia

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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.

Early childhood caries (ECC)

How to take part

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

  1. The official record

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

    Open the record ↗

  2. 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.

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