advocated techniques other than conventional for Biomechanical preparation

Various advocated techniques other than conventional for Biomechanical preparation are   

STEP BACK  PREPARATION

Principle

Ø  This technique includes the use of larger root canal instruments sequentially and each set 1 mm shorter than the preceding instrument, once the canal has been enlarged in the apical 1/3rd to at least #25 or #30 instrument.

HYBRID TECHNIQUE

It was advocated by Georig and Buchanan. It is a combination of step back and step down hence called as Hybrid technique.

BALANCED FORCE TECHNIQUE

Ø  It is derived from the concept that for every action there is an equal and opposite reaction.

Ø  At this point the balanced force instrumentation begins. It is simply an expansion of the concept of reaming the canals which differs primarily in that the cutting motion is intentionally counter clockwise and accomplished at any level without blockage.