Table 3.

The minimal distal dentine thicknesses of mesial roots in danger zone according to root lengths (mean ± SD, mm)

Groups	Men					Women
	1 mm	2 mm	3 mm	4 mm	5 mm	1 mm	2 mm	3 mm	4 mm	5 mm
long	0.97 ± 0.17	0.82 ± 0.13	0.78 ± 0.12	0.78 ± 0.11	0.78 ± 0.11	0.97 ± 0.16	0.82 ± 0.13	0.79 ± 0.14	0.82 ± 0.14	0.82 ± 0.12
medium	0.93 ± 0.15	0.79 ± 0.13	0.76 ± 0.12	0.76 ± 0.12	0.78 ± 0.11	0.91 ± 0.14	0.77 ± 0.12	0.75 ± 0.11	0.75 ± 0.12	0.76 ± 0.12
short	0.92 ± 0.14	0.76 ± 0.13	0.74 ± 0.11	0.75 ± 0.12	0.75 ± 0.11	0.87 ± 0.13	0.73 ± 0.13	0.71 ± 0.11	0.73 ± 0.11	0.74 ± 0.12