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Laser vs. standard: which root canal cleaner works best?

NCT ID NCT07439614

Disease control Sponsor: State University of New York at Buffalo 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compares two methods for disinfecting root canals in teeth with apical periodontitis (an infection at the tooth root). Fifty adults with infected molars will receive either a laser-based disinfection or a standard protocol. The goal is to see which method reduces bacteria more effectively, measured by rapid ATP testing and lab analysis.

What this could mean

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

Active substance
Er,Cr:YSGG laser (2780 nm) with radial-firing tip
What this could lead to
If successful, this could point toward a more effective way to disinfect root canals, potentially improving outcomes for patients with apical periodontitis.
What could go wrong
This is a small, early-stage study (50 participants) comparing two methods. Results may not apply to all teeth or patients, and the laser method may not prove superior to standard care.

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.

Started

Apr 2026

Expected to finish

Jun 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 70 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: * Adult patients able to give informed consent and willing/able to comply with study procedures and follow-up. * Molar teeth indicated for endodontic treatment. * Teeth with intact pulp-chamber walls (no extensive coronal destruction). * Necrotic pulp confirmed by pulp testing. * Clinical and radiographic evidence of asymptomatic apical periodontitis. Exclusion Criteria: * Immature teeth * Teeth with calcified or obliterated canals * Teeth with extensive coronal destruction * Teeth with previous endodontic treatment * Symptomatic apical periodontitis * Teeth with periodontal pockets greater than 4 mm * Patients who have received systemic antibiotics in the last 3 months * Patients with a history of diabetes or immune impairment * Pregnant patients

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Conditions

The condition(s) this trial relates to.

periapical periodontitis

As listed by the trial registrant

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

Periapical 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

  • Advance Education in Endodontics Program

    RECRUITING

    Buffalo, New York, 14214, United States

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