Antibacterial Effectiveness Of Rotary And Reciprocating Systems On Microbial Load Reduction In Retreatment Cases- A Systematic Review

: One of the significant endodontic challenges is to control the microbial infection after a successful endodontic treatment has been administered. The failure of an endodontic treatment occurs due to post operative microbial leakage causing the reinfection to occur. The remedy to such cases is to perform the endodontic retreatment. One of the commonest retreatment endodontic file system is Protaper Universal retreatment file(DentsplyTulsa,Tulsa) , D-Race retreatment system(FKG Dentaire, Switzerland) , Mtwo retreatment file system(VDW,Munich Germany), R-Endo file system(MicroMega, Besancon , France) or GPR mani files for the retreatment cases. These systems are based on continuous rotary motion. The modern endodontic instruments which focus on the reciprocation method of functioning involve the following systems - Reciproc file system(VDW,Munich Germany), reciproc blue file system(VDW,Munich Germany) , Waveone file system(Dentsply Maillefer,Switzerland) , Waveone Gold file system(DentsplyMaillefer,Switzerland). The current systematic review analyses the effectiveness of Rotary and Reciprocating systems on microbial load reduction in endodontic retreatment cases