Fig. 2From: Post endodontic pain following single-visit root canal preparation with rotary vs reciprocating instruments: a meta-analysis of randomized clinical trialsPost endodontic pain incidence odds ratio comparing reciprocating with rotary instruments. There were 1,317 patients included in the whole study and odds ratio was 1.27 favored rotary instruments in the PP incidence for single visit canal therapy patientsBack to article page