Evaluation of Root Canal Debridement of Human Molars Using the GentleWave System.

By Molina B, Glickman G, Vandrangi P, Khakpour M.

Date: 06/2016
Journal: JOE


Purpose: to compare the debridement efficacy of the GentleWave System (GWS) with a traditional method for cleaning root canals.

N= 45 extracted molars.


•(n = 15/group):

•G1: no treatment

•G 2: conventional rotary instrumentation and needle irrigation

•G 3: minimal instrumentation and the GWS treatment.

•Roots were prepared for histology and examined under microscope.

•The percentage of soft tissue and debris remaining within the canals was morphometrically calculated. Images of the apical and middle regions of the roots were blindly analyzed.

•Most highlighted Results: 

  • Significant differences were found between G 2 and 3 in both apical (P = .0015) and middle (P = .0179) regions of MB,ML of mandibular molars and MB of maxillary molars.
  • G 2 and 3 resulted in cleaning 67.8% and 97.2% of the MB and ML root canals of mandibular molars and the MB canals of maxillary molars, respectively.
  • Whereas the results were similar among groups 2 and 3 in the apical and middle regions of distal roots.

Clinical significance:

The use of GentleWave System (GWS) is effective in cleaning mesial canals.