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Laser zaps tooth pain after dental procedure, study finds

NCT ID NCT07593508

Symptom relief Sponsor: Hue University of Medicine and Pharmacy 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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 (diode laser) after a common dental procedure called direct pulp capping can help reduce pain and tooth sensitivity. Fifty-six people with tooth decay that reached the nerve were treated. Half got standard care, and half got standard care plus the laser. The goal was to see if the laser group had less discomfort after the procedure.

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

56 people

The number who actually took part.

Started

Jul 2022

Finished

Aug 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.

Ages

10 to 58 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: * Participants aged 10 to 58 years. * Teeth with pulp exposure caused by caries removal. * Vital teeth confirmed by clinical pulp vitality tests (cold and heat tests) and radiographic examination. * No history of spontaneous pain; only mild or tolerable discomfort to cold stimuli. * Pulp exposure less than 2 mm in diameter. * Normal radiographic findings with no periapical pathology. * Bleeding controllable within 10 minutes. * Written informed consent obtained from participants or legal guardians. Exclusion Criteria: * Pulp exposure caused by trauma or occlusal wear. * Teeth unsuitable for restoration, including subgingival fractures or vertical root cracks. * Clinical signs of irreversible pulpitis, abscess, or sinus tract. * Uncontrollable bleeding after 10 minutes of saline pressure or laser hemostasis. * Previous use of analgesics before treatment. * Multiple pulp exposures in the same dental arch.

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Conditions

The condition(s) this trial relates to.

dentin sensitivity exposure, dental pulp Pain, Postoperative

As listed by the trial registrant

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

Dental pulp exposure Dentin hypersensitivity Postoperative pain

Contacts and locations

Locations

  • Department of Odonto-Stomatology, Hue University of Medicine and Pharmacy

    Huế, 49000, Vietnam

More trials for these conditions

Other studies related to the condition(s) this trial covers.