Laser vs ultrasound: which cleans root canals better?

NCT ID NCT07607028

Completed Knowledge-focused Sponsor: Hasanuddin University Source: ClinicalTrials.gov ↗

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

Summary

This small study tested two methods for cleaning infected root canals: ultrasonic activation and a 980-nm diode laser. Sixteen adults with dead (necrotic) teeth had their root canals cleaned with one of these methods. Researchers checked for leftover bacterial DNA to see which method worked better. The goal is to find the most effective way to reduce bacteria during root canal treatment.

What this could mean

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

Active substance: 3% sodium hypochlorite irrigation activated by ultrasonic or diode laser
What this could lead to: If one method proves better at removing bacteria, it could improve root canal success rates.
What could go wrong: This is a very small pilot study with only 16 participants, so results may not apply to all cases. It measures bacterial DNA, not actual infection outcomes.

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Conditions

The condition(s) this trial relates to.

dental abscess dental pulp necrosis suppurative periapical periodontitis

As listed by the trial registrant

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

PULP NECROSIS ROOT CANAL INFECTION

Contacts and locations

Locations

Dental and Oral Hospital Hasanuddin University

Makassar, South Sulawesi, 90245, Indonesia

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