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Gum disease germ hunt: scientists search for hidden bacteria

NCT ID NCT07443917

Knowledge-focused Sponsor: University of Baghdad 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study aims to find out if a specific bacteria called Treponema parvum is more common in people with gum disease (periodontitis) compared to healthy people. Researchers will collect plaque samples from the gums of 112 participants and use a DNA test to measure the amount of this bacteria. The results may help clarify whether this germ plays a role in causing gum disease.

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.

Participants

About 112 people

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

Started

Dec 2025

Expected to finish

Sep 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.

Who is studied

Study population involves those who are attending the clinics of Periodontics in the College of Dentistry / University of Baghdad, in Baghdad / Iraq, and seeking for periodontal treatment. Eligible patients according to the pre-defined inclusion and exclusion criteria who will be invited to participate in this study.

Ages

30 years and older

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: include participants who have at least 20 teeth and diagnosed as generalized periodontitis. Exclusion Criteria: participants meeting any of the following criteria were excluded: (1) undergoing orthodontic treatment; (2) having a history of antibiotic/nonsteroidal anti-inflammatory drugs use within the last three months; (3) having a history of valve replacement who need prophylactic antibiotic coverage; (4) pregnant or lactating women; (5) having a history periodontal therapy within the last six month. \-

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Conditions

The condition(s) this trial relates to.

periodontitis

As listed by the trial registrant

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

Periodontitis

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

  • College of Dentistry, University of Baghdad

    RECRUITING

    Baghdad, 10047, Iraq

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