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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: Int Endod J. 2010 Aug 19;43(12):1077–1090. doi: 10.1111/j.1365-2591.2010.01778.x

Table II.

Percentage of total isthmus area occupied by debris in the MDI and the ANP groups at ten canal levels.

Canal level
(from anatomic apex)		 MDI
(%) * 		ANP
(%) *
1.0 mm 15.64 1,B 0.00 2,a
1.2 mm 23.59 1,AB 1.81 2,a
1.4 mm 24.39 1,AB 0.00 2,a
1.6 mm 25.02 1,AB 0.00 2,a
1.8 mm 24.76 1,AB 1.70 2,a
2.0 mm 25.93 1,AB 0.70 2,a
2.2 mm 26.69 1,A 1.41 2,a
2.4 mm 21.87 1,AB 1.84 2,a
2.6 mm 24.81 1,AB 2.52 2,a
2.8 mm 20.81 1,AB 1.46 2,a
Pooled data
from the
ten canal levels ** 		23.36 1 1.15 2
*

Values are expressed as least square means with the common standard error of the least square means = 2.38.

**

When data from the 10 canal levels of each “Group” are pooled together, the least square mean of the “MDI” group is 23.36% and that of the “ANP” group is 1.15%. The common standard error of the least square means is 2.49%. The difference of the pooled data between the “MDI” group and the “ANP” group is highly significant (p < 0.001).