Llena C, Cuesta C, Forner L, Mozo S, Segura JJ. The effect
of passive ultrasonic activation of 2% chlorhexidine or 3% sodium hypochlorite
in canal wall cleaning. J Clin Exp Dent. 2015;7(1):e69-73.
 
doi:10.4317/jced.52088
http://dx.doi.org/doi:10.4317/jced.52088
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