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Laser treatment fails to improve root canal outcomes in small study

NCT ID NCT07243353

Knowledge-focused Sponsor: Kırıkkale University Source: ClinicalTrials.gov ↗

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Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at whether using a special laser (Nd:YAG) during root canal treatment could help reduce inflammation and oxidative stress in infected teeth. Researchers measured certain markers in fluid samples from 58 patients. The results showed that the laser did not provide any extra benefit compared to standard root canal treatment alone.

What this could mean

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

Active substance
Nd:YAG laser
What this could lead to
If successful, this approach might have pointed toward a new way to improve root canal outcomes by reducing inflammation.
What could go wrong
The trial was small (58 patients) and already completed with negative results—the laser showed no advantage over standard treatment.

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

58 people

The number who actually took part.

Started

Feb 2024

Finished

Nov 2024

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

The study groups comprised of patients who had applied to the Department of Endodontics at the Faculty of Dentistry at Kırıkkale University and that underwent endodontic treatment from 15 February 2024 to 15 October 2024.

Ages

25 to 50 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: * Patients aged between 25 and 50 years and classified as American Society of Anesthesiologists (ASA) I. The maxillar and mandibular incisors and premolars with chronic apical periodontitis of a PAI score of 3 or 4 were included. Exclusion Criteria: * Patients with American Society of Anesthesiologists (ASA) classification II or higher, pregnant, patients with localised or generalised periodontitis, patients who had used antibiotics in the last month and anti-inflammatory drugs in the last week, smokers, and teeth with internal or external root resorption, swelling, palpation pain or fistula in the relevant area, root fracture or incomplete root formation, and teeth that could not be isolated with rubber dam were not included in the study.

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Conditions

The condition(s) this trial relates to.

chronic apical periodontitis periapical periodontitis

As listed by the trial registrant

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

Apical periodontitis Apical periodontitis oxidative stress Oxidative stress

Contacts and locations

Locations

  • Kırıkkale Üniversitesi Diş Hekimliği Fakültesi

    Kirikkale, Turkey (Türkiye)

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