Objective:

To conduct a literature review on and describe the most effective irrigation techniques in removing calcium hydroxide as an intracanal medicament.

Materials and methods:

Literature review conducted in PubMed, Scopus, and Web of Science. Thirty-two articles published between 2015 and 2020 were selected.

Results:

Ultrasonic irrigation—the most widely studied technique—does not achieve the highest levels of efficacy. Laser-activated irrigation was the most effective way to remove medication in the three thirds of the canals. The most frequently used irrigants were sodium hypochlorite and ethylenediaminetetraacetic acid.

Conclusion:

The most effective techniques are laser-activated irrigation and passive ultrasonic irrigation. The evidence indicates that sodium hypochlorite and ethylenediaminetetraacetic acid should be used sequentially and not exclusively as irrigants.

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