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. 2018 Aug 15;2018:8170620. doi: 10.1155/2018/8170620

Table 1.

The frequency and percentage of number of roots and canal configuration in maxillary first premolar teeth.

Number of Roots
One Root Two Roots Three Roots Total
Frequency (%) Women 43 (26.5%) 119 (73.5%) 0 (0%) 162 (100%)
Men 36 (20.9%) 132 (76.8%) 4 (2.3%) 172 (100%)
Total 79 (23.7%) 251 (75.1%) 4 (1.2%) 334 (100%)

Canal Configuration

Type I (1) Type II (2-1) Type III (1-2-1) Type IV (2) Type V (1-2) Type VI (2-1-2) Type VII (1-2-1-2) Type VIII (3) Total

Frequency (%) Women 15 (9.3%) 17 (10.5%) 5 (3.1%) 112 (69.1%) 9 (5.6%) 3 (1.8%) 0 (0%) 1 (0.6%) 162 (100%)
Men 21 (12.2%) 11 (6.4%) 1 (0.6%) 124 (72.1%) 4 (2.3%) 4 (2.3%) 1 (0.6%) 6 (3.5%) 172 (100%)
Total 36 (10.8%) 28 (8.4%) 6 (1.8%) 236 (70.6%) 13 (3.9%) 7 (2.1%) 1 (0.3%) 7 (2.1%) 334 (100%)