Impact of Cross-Sectional design in Single-File rotary system on apical debris extrusion and postoperative pain following Single-Visit root canal treatment: an in vitro and randomized clinical study

NCT ID NCT07808684

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 09, 2026 · Last updated Sep 09, 2026

Summary

Endodontic treatment aims to achieve optimal biological outcomes while minimizing patient's discomfort during and after the procedure. Postoperative pain remains a common complication and is considered a multifactorial phenomenon influenced by several factors, including preoperative pain, age, gender, systemic health, presence of apical periodontitis, instrumentation technique, type and design of endodontic instruments, and the use of intracanal medications.

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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 30 people

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

Started

Jun 2026

Expected to finish

Dec 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

20 to 40 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: * Teeth with mature apex * Straight root canal or mild curvature not exceeding(5-10) Schneider. * Has intact crown ( coronal structure) * Presence of one orifices and one apices, patency achieved by a #10-15 K-file to the apical foramen Exclusion Criteria: * Previous root canal treatment. * Internal/external resorption. * Immature root apices. * Caries/cracks/fractures on the root surface. * Root canal curvature more than 10 degrees. * Teeth in which the apical minor constriction was gauged larger than a size 20 hand file.

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Conditions

The condition(s) this trial relates to.

Pain, Postoperative pulpitis

As listed by the trial registrant

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

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.

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  3. A doctor treating you

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Contacts and locations

Locations

  • Endodontics, Faculty of Dentistry, Minia University

    RECRUITING

    Minya, Minya Governorate, Egypt

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