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New tooth-colored crown tested for kids' cavities

NCT ID NCT06583759

Disease control Sponsor: Alexandria University 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested a new type of dental crown made from a material called PEEK for children's back baby teeth. Fifty healthy children aged 5 to 7 received either a PEEK crown or a standard metal crown. The researchers checked how well the crowns worked and looked 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

50 people

The number who actually took part.

Started

Nov 2024

Finished

Apr 2026

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

5 to 7 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. Participant Inclusion Criteria * Age ranges from 5 - 7 years. * Children free of any systemic disease or special health care need (ASA I).(30) * Positive or definitely positive behaviour during preoperative assessments according to the Frankl Rating Scale (score 3 or 4) (Appendix I).(31) * Patients whose parents will give their consent to participate. 2. Tooth Inclusion Criteria * Mandibular second primary molars that are indicated for full coverage:(7) * Present opposing tooth. Tooth Exclusion Criteria: * Root resorption affecting more than one third of the root length. * Clinical signs and symptoms of irreversible pulpitis or non-vitality. (Appendix II) (32) * Fistula or abscess related to the selected tooth clinically and radiographically. * Non restorable crowns. * Signs of mobility or bone resorption.

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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.

Dental caries

Contacts and locations

Locations

  • Faculty of Dentistry

    Alexandria, Egypt

  • Faculty of Dentistry, Alexandria University

    Alexandria, Egypt

More trials for these conditions

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