Comparative evaluation of antibacterial efficacy of nitrofurantoin, chitosan, and calcium hydroxide in combination with propylene glycol as an intracanal medicament against endodontic pathogen - An <i>in vitro</i> study.

The symbols used to denote significance levels in the results are as follows [ Tables 1 - 3 ]: * = Statistically significant difference ( P < 0.05) ** = Statistically highly significant difference ( P < 0.01) # = Nonsignificant difference ( P < 0.05).

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