Table 3.

The distance between canal orifices

nal morphology	$\overline{X}\pm S$(mm)
Type II	2.76 ± 0.55
Type IV	3.02 ± 0.55a
Type VI	2.72 ± 0.32
Type VIII	3.41 ± 0.11

*p < 0.05, independent samples t test, type VI and type VIII not included

^aSignificant difference, p = 0.000011 < 0.05