Kalra P, Rao A, Suman E, Shenoy R, Suprabha BS. Evaluation of conventional, protaper hand and protaper rotary instrumentation system for apical extrusion of debris, irrigants and bacteria- An in vitro randomized trial. J Clin Exp Dent. 2017;9(2):e254-8.

doi:10.4317/jced.53340

http://dx.doi.org/doi:10.4317/jced.53340

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