Multisonic Ultracleaning and Laser-Activated Irrigation Effect Compared to Passive Ultrasonic Activation for Debridement in Minimally Invasive Instrumentation of Necrotic Oval Root Canals: An Ex Vivo Histological Analysis.

Because lasers overcome these disadvantages by action mechanism, they concluded that laser-assisted irrigation is superior to conventional irrigation, and ultrasonic as well, and there is a clear trend of advanced antimicrobial effect [ 36 ].

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Especially for the needle irrigation group, the tissue and debris residues were highly significant, as pointed out in the representative histological sections. 4.

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