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Which root canal paste fights bacteria better?

NCT ID NCT07819240

Disease control Sponsor: Ataturk University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 14, 2026 · Last updated Sep 15, 2026 · Updated 1 time

Summary

Researchers compare two intracanal medicaments, calcium hydroxide and a calcium silicate-based paste, in 56 adults with acute apical abscesses in single-rooted teeth. They place each medicament inside the cleaned root canal for 7 to 10 days. Bacterial samples are taken before and after cleaning and after the medication period. Using Real-Time PCR, the team measures changes in total bacterial load and levels of specific endodontic bacteria to see which medicament reduces bacteria more.

What this could mean

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

Active substance
calcium hydroxide and a calcium silicate-based intracanal medicament
What this could lead to
If one medicament clears more bacteria, dentists could choose it to help resolve infection and support healing in teeth with acute apical abscesses.
What could go wrong
This is a small, single-center study of 56 people with a specific type of dental abscess. Results may not apply to other teeth or patients, and both medicaments are already used in practice.

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 56 people

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

Started

Sep 2025

Expected to finish

Jan 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

18 to 65 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: * Diagnosis of acute apical abscess * A single-rooted permanent tooth requiring primary endodontic treatment * Age between 18 and 65 years * No history of systemic disease * American Society of Anesthesiologists physical status classification I (ASA I) * Provision of written informed consent Exclusion Criteria: * Previous endodontic treatment of the affected tooth * Periodontal probing depth greater than 4 mm * History of trauma involving the affected tooth * Pregnancy or breastfeeding * Immunodeficiency

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Conditions

The condition(s) this trial relates to.

acute apical periodontitis

As listed by the trial registrant

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

Acute apical abscess

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

  • Ataturk University Faculty of Dentistry

    RECRUITING

    Erzurum, Erzurum, 25240, Turkey (Türkiye)