An in vitro study of different irrigants on coronal microleakage
GUO Xiao-lin
GUO Xiao-jin
LU Li-zhen
WU Ming
LU Xi
Abstract：AIM:To evaluate the influence of different chemical irrigants on coronal microleakage after root canal filling. METHODS:45 premolar teeth with single canal were randomly divided into 3 groups ( n=15 ) . The teeth were instrumented with protaper and root canals of the 3 groups were respectively irrigated with 20 g/L chloramine (Group 1), 20 g/L Sodium hypochlorite(Group 2) and 170 g/L MTAD(Group 3). Then each tooth canal was obtura-ted byh warm vertical condensation technique and coronal microleakage was determined by color staining method. RESULTS:Group 3 showed significantly less microleakage than group 1 and group 2 (P<0. 05), while there was no significant difference between group 1 and group 2 (P>0. 05) . CONCLUSION:170 g/L MTAD is more effective than 20 g/L chloramine and 20 g/L Sodium hypochlorite in removing smear layer and reducing the microleakage after root canal obturation.
Keywords：MTADcoronal microleakageirrigant solutionssmear layer
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 430-433 )