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Simple tooth brushing before surgery may stop pneumonia

NCT ID NCT07669064

Prevention Sponsor: University Hospital Ulm 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study tests whether a quick oral hygiene routine—brushing teeth and tongue, then rinsing with an antiseptic mouthwash—right before surgery can reduce the amount of bacteria that travel from the mouth into the windpipe during intubation. The trial involves 60 adults aged 60 or older having elective surgery under general anesthesia. Half will do the oral cleaning; the other half will receive standard care. Researchers will measure bacteria levels in the mouth and windpipe to see if the cleaning helps.

What this could mean

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

Active substance
chlorhexidine oral antiseptic
What this could lead to
If it works, this simple oral hygiene step before surgery could reduce the risk of postoperative pneumonia, a common and serious complication.
What could go wrong
This is a small early study (60 people) that only measures bacterial levels, not actual pneumonia rates. The effect may be small or not translate to fewer infections.

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 60 people

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

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

May 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

60 years and older

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: * Age ≥ 60 years * Elective surgery under general anesthesia with endotracheal intubation * Expected duration of surgery ≥ 2 hours * Ability to provide written informed consent Exclusion Criteria: * Systemic antibiotic therapy within 7 days before surgery * Planned postoperative systemic antibiotic therapy * Known hypersensitivity or allergy to chlorhexidine * Pneumonia or clinically relevant respiratory infection within 7 days before surgery * Inability to perform the study intervention as intended * Preoperative oral hygiene on the day of surgery, less than four hours prior to induction of the general anesthesia

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As listed by the trial registrant

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

Bacterial transmission Chlorhexidine Intubation, intratracheal

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

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Contacts and locations

Locations

  • Ulm University Medical Center, Department of Anesthesiology and Intensive Care Medicine

    Ulm, Baden-Wurttemberg, 89081, Germany

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