Table 10.
Correlation of toothbrushing with gingival recession (GR)
| GR | Toothbrushing |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Frequency |
Total n (%) | Method |
Total n (%) | Bristle type |
Total n (%) | ||||||
| Once daily n (%) | Twice daily n (%) | H n (%) | H + V n (%) | V n (%) | Soft n (%) | Medium n (%) | Hard n (%) | ||||
| Present | 74 (85.1) | 13 (14.9) | 87 (100) | 58 (66.7) | 21 (24.1) | 8 (9.2) | 87 (100) | 7 (8.0) | 75 (86.2) | 5 (5.7) | 87 (100) |
| Absent | 211 (66.6) | 106 (33.4) | 317 (100) | 163 (51.4) | 112 (35.3) | 42 (13.2) | 317 (100) | 46 (14.5) | 255 (80.4) | 16 (5.0) | 317 (100) |
| Total | 285 (70.4) | 119 (29.4) | 404 (100) | 221 (54.6) | 133 (32.1) | 50 (12.3) | 404 (100) | 53 (13.1) | 330 (81.5) | 21 (5.2) | 404 (100) |
| χ2* | 416.2 | 411.4 | 407 | ||||||||
| P | <0.001, HS | 0.002, S | 0.01, S | ||||||||
*
Chi-square test. H, horizontal; H + V, horizontal + vertical; V, vertical; HS, highly significant; S, significant.