Efficacy of ProTaper Retreatment System in Root Canals Obturated with Gutta-Percha Using Two Different Sealers and GuttaFlow

Table 2

Mean difference in the debris ratio of the total canal between the three groups.

Group (i)	Group (j)	Mean difference	95% confidence interval		P value
1	2	.1837529	0.066	0.30	.001*
2	3	−.0847673	0.03	−0.20	.197
1	3	−.2685202	0.15	0.38	.000*

*Significant at 5% level.