24 September 2020: Clinical Research
Evaluation of the Relationship Between Maxillary Sinus Wall and Maxillary Canines and Posterior Teeth Using Cone-Beam Computed Tomography
Yifei Qin 1ABCDEF , Guang Shu 1AB , Tianmin Xu 2ADEG*DOI: 10.12659/MSM.925384
Med Sci Monit 2020; 26:e925384
Table 4 Frequencies of type AC in the maxillary canines and posterior teeth by age and sex.
| Canine | 1PM | 2PM | 1M MB | 1M DB | 1M P | 2M | |
|---|---|---|---|---|---|---|---|
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |
| 10–19 | 33 (12.7%) | 42 (15.9%) | 44 (16.7%) | 27 (10.2%) | 40 (15.2%) | 8 (3.0%) | 32 (12.1%) |
| 20–29 | 13 (5.3%) | 26 (10.7%) | 21 (8.6%) | 22 (9.0%) | 24 (9.8%) | 5 (2.0%) | 28 (11.5%) |
| 30–47 | 3 (2.4%) | 11 (8.7%) | 4 (3.2%) | 10 (7.9%) | 15 (11.9%) | 3 (2.4%) | 12 (9.5%) |
| 0.000 | .046 | 0.000 | 0.282 | 0.417 | 0.928 | 0.398 | |
| Female | 28 (6.9%) | 47 (11.5%) | 38 (9.3%) | 42 (10.2%) | 44 (10.7%) | 6 (1.5%) | 48 (11.7%) |
| Male | 21 (9.4%) | 32 (14.3%) | 31 (13.8%) | 17 (7.6%) | 35 (15.6%) | 10 (4.5%) | 24 (10.7%) |
| 0.966 | 0.664 | 0.594 | 0.182 | 0.137 | .033 | 0.559 | |
| Total | 49 (7.8%) | 79 (12.5%) | 69 (10.9%) | 59 (9.3%) | 79 (12.4%) | 16 (2.5%) | 72 (11.4%) |
| 1PM – first premolars; 2PM – second premolars; 1M MB – first molar mesiobuccal roots; 1M DB – first molar distobuccal roots; 1M P – first molar palatal roots; 2M – second molars. | |||||||