In the partial vacuum of scientific consensus and clinical guidelines as to optimal irrigation, we could use the partial vacuum of negative pressure irrigation systems to achieve multiple beneficial goals to enhance root canal cleaning: – increase overall volume of irrigant(s);
– enhance replacement of solution in the canal space;
– deliver irrigant(s) into the apical third with no vapor lock;
– clean the apical third safely with zero irrigant extrusion beyond apex.
-the use of cryotherapy to minimize post operative pain.
Combining the partial vacuum created by the appropriate equipment with the proper, evidence-based irrigation sequence can make root canal therapy more efficient, predictable, successful, safe as well as speedy.