From: Root dentine thickness of danger zone in mesial roots of mandibular first molars
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 |