Effect of different flushing conditions with water on the number of prepared root canals with nickel titanium rotary files
XIA Dong
SUN Yi-dan
HAO Wen-jun
LI Yan-feng
CHAI Guang-quan
ZHANG Hui
LV Yuan
ZHANG Ying
Abstract：Objective:The study seeks to compare 4 flushing ways of preparing root canal with nickel titanium rotary files,and to explore which method could increase the number of prepared root canals using single nickel-titanium file.Methods:A transparent resin model of root canal was established.ProTaper Universal (PTU F1) instruments were used to prepare the root canals on the model.The number of root canals in four groups of dry drilling,dry gas,air and water were recorded under different conditions of preparation.Results:The number of prepared root canals in the four groups was:dry drilling group (3.80+ 2.24);air group (3.77+ 1.73);water vapour group (5.73 + 3.00);water group (7.71 + 2.07).Conclusions:To prepare root canal with nickel titanium rotary files in the four flushing methods,the most effective way is flushing with water,secondly with water vapour,then with air or dry drilling.
Keywords：root canal preparationrotary nickel-titanium instrumentsflushingsimulation of the root canalinstrument separation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 65-69 )