Laser light could boost root canal success

NCT ID NCT07194837

Recruiting now Disease control Sponsor: Al-Azhar University Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether using an 810 nm diode laser during root canal retreatment helps the bone around the tooth heal better. Forty adults with a failed root canal and a visible infection will receive standard retreatment plus either laser disinfection or a calcium hydroxide paste. Healing will be checked with 3D X-rays after one year.

What this could mean

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

Active substance: 810 nm diode laser
What this could lead to: If it works, this could offer a better way to disinfect root canals during retreatment, potentially improving healing and reducing the need for surgery.
What could go wrong: This is a small, early-stage trial with only 40 participants. The laser is used as an add-on to standard care, so any benefit may be modest. Results may not apply to all tooth types or infections.

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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.

THIS STUDY WILL BE PERFORMED TO EVALUATE THE EFFICIENCY OF 810 NM DIODE LASER DISINFECTION ON PERIAPICAL HEALING IN ROOT CANAL RETREATMENT CASES

Contacts and locations

Locations

from the outpatient clinic of Endodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University
RECRUITING

Cairo, Egypt

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