Histological analysis of cleaning efficacy of hand and rotary instruments in the apical third of the root canal: A comparative study.

J Conserv Dent · 2011 · PMC3198551 · PMID 22025825

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did not reach statistical significanceno p-value reported

The results indicated that manual instrumentation appeared superior to rotary instrumentation for the debridement in the apical third of the root canal system, but this difference did not reach statistical significance.

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