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New tool may ease pain after baby tooth root canals

NCT ID NCT07427420

Symptom relief Sponsor: Cairo 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether using a special rotary file (a spinning tool) causes less pain after a baby tooth root canal than the traditional manual file. Fifty children aged 4 to 6 with an infected baby molar will be randomly assigned to one of the two methods. Parents will rate their child's pain at several times up to one week after the procedure.

What this could mean

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

Active substance
Fanta AF F one rotary files 20 taper 4 (rotary file device) and manual files (k files)
What this could lead to
If it works, this could show that using a rotary file reduces pain after a baby tooth root canal compared to manual files.
What could go wrong
This is a small, early-stage trial with only 50 children, so results may not apply to all kids. Pain is subjective and hard to measure reliably in young children.

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

Apr 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

4 to 6 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: * • Patients: * Aged 4-6years, Medically free and Cooperative. * Teeth: * Restorable mandibular second primary molars with clinical signs or symptoms of irreversible pulpitis. Pre-operative Radiographic criteria: * Absence of internal or external root resorption. * Absence of periapical or inter-radicular radiolucencies. Exclusion Criteria: * • Patients: * Uncooperative children. * Children with systemic disease. * Physical or mental disabilities. * Refusal of participation. * Unable to attend follow- up visits. * Refusal to sign the informed consent. Teeth: * Previously accessed teeth. * Mobile mandibular primary molars. * Pain on percussion. * Swelling in the vestibule or on palpation.

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Conditions

The condition(s) this trial relates to.

pulpitis

As listed by the trial registrant

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

Irreversible pulpitis

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

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

    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

  • Faculty of Dentistry, Cairo University

    Cairo, Egypt, 11411, Egypt

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