Resistance to Fracture of Dental Roots Obturated with Different Materials

Table 2

Mean ± standard deviation, 95% Confidence Interval, median, and maximum and minimum values of fracture strength for each group (in Newtons).

Groups		Mean ± SD	95% Confidence Interval		Median	Max	Min
			Lower bound	Upper bound
ActiV GP sealer + GP cone	15	698.6 ± 212.8^a,b	580.7	816.5	708.7	1087.2	377.4
EndoSequence BC sealer + BC point	15	580.8 ± 109.6^a	520.1	641.5	571.4	883.4	454.1
Smartpaste bio sealer + Propoint	15	599.1 ± 174.6^a	502.4	695.8	588.0	947.2	368.5
negative control	5	831.9 ± 143.7^b	653.5	1010.4	784.0	1073.2	692.8
positive control	5	425.9 ± 101.9^c	299.2	552.5	439.2	543.5	284.0

SD: standard deviation.
Values with the same superscript are not statistically different ( > 0.05).