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Types of the distance form root to the maxillary sinus floor for both gender
| Type of distance from root to maxillary sinus floor [n,(%)] | ||||
|---|---|---|---|---|
| Gender | Type I > (0.5 mm) | Type II (≤ 0.05 mm) | Type III (= 0 mm) | Type IV (< 0 mm) |
| Female | 268 (22.7) | 25 (2.1) | 133 (11.2) | 19 (1.6) |
| Male | 424 (35.8) | 50 (4.2) | 161 (13.7) | 103 (8.7) |
| Total | 692 (58.5) | 75 (6.3) | 294 (24.9)a | 122 (10.3)b |
*p < 0.05, chi-square test
aSignificant difference, p = 0.002 < 0.05
bSignificant difference, p = 0.000000 < 0.05
