Table 2.
Root anatomy and root canal morphology of maxillary first and second premolars according to gender and tooth side
| Maxillary first premolar (n = 304) | Maxillary second premolar (n = 333) | ||||||
|---|---|---|---|---|---|---|---|
| One Root | Two Roots | Three Roots | One Root | Two Roots | |||
| One Canal | Two Canals | Two Canals | Three Canals | One Canal | Two Canals | Two Canals | |
| Left | 16 (10.5%) |
86 (56.6%) |
49 (32.2%) |
1 (0.7%) |
87 (52.4%) |
66 (39.8%) |
13 (7.8%) |
| Male | 3 (2.0%) |
37 (24.3%) |
26 (17.1%) |
1 (0.7%) |
24 (14.5%) |
38 (22.9%) |
8 (4.8%) |
| Female | 13 (8.6%) |
49 (32.2%) |
23 (15.1%) |
– | 63 (38.0%) |
28 (16.9%) |
5 (3.0%) |
| Right | 19 (12.5%) |
85 (55.9%) |
48 (31.6%) |
– | 91 (54.5%) |
62 (37.1%) |
14 (8.4%) |
| Male | 4 (2.6%) |
35 (23.0%) |
28 (18.4%) |
– | 23 (13.8%) |
37 (22.2%) |
10 (6.0%) |
| Female | 15 (9.9%) |
50 (32.9%) |
20 (13.2%) |
– | 68 (40.7%) |
25 (15.0%) |
4 (2.4%) |
| Total | 35 (11.5%) |
171 (56.3%) |
97 (31.9%) |
1
(0.3%) |
178 (53.5%) |
128 (38.4%) |
27 (8.1%) |
|
155
(46.5%) |
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