Table 2.
Toothbrushing Time (in Seconds) and Pre/Post Differences One-Year after Baseline
| Tooth Surfaces N=14 children who used app for 7 days |
Baseline Mean (SD) |
After 7 Days Mean (SD) |
After One Year Mean (SD) |
Pre/Post Difference Mean (SD) |
95% CI* | P-value** |
|---|---|---|---|---|---|---|
| All surfaces | 40.6 (23.8) | 68.3 (34.9) | 53.9 (47.4) | 13.3 (54.2) | −18.0, 44.6 | 0.38 |
| Lingual surfaces | 0.4 (1.3) | 13.5 (14.9) | 0.9 (3.3) | 0.5 (3.7) | −1.6, 2.7 | 0.60 |
| Buccal surfaces | 26.2 (27.4) | 36.6 (24.3) | 35.5 (34.8) | 9.3 (45.6) | −17.0, 35.6 | 0.46 |
| Occlusal surfaces | 14.0 (8.9) | 18.1 (11.7) | 17.5 (15.5) | 3.5 (12.8) | −3.9, 10.8 | 0.33 |
| Maxillary occlusal surfaces | 4.6 (5.0) | 8.9 (6.6) | 5.0 (5.8) | 0.3 (5.2) | −2.7, 3.3 | 0.82 |
| Mandibular occlusal surfaces | 9.4 (7.6) | 9.2 (7.2) | 12.5 (13) | 3.1 (13.7) | −4.8, 11.1 | 0.41 |
| Posterior buccal surfaces | 12.7 (18.8) | 20.7 (17.5) | 21.5 (24.8) | 8.8 (28.2) | −7.5, 25.1 | 0.26 |
| Anterior buccal surfaces | 13.5 (14.0) | 15.9 (12.0) | 14 (18.6) | 0.5 (26.9) | −15.0, 16.0 | 0.95 |
| Tooth Surfaces N=10 children who used app for 14 days |
Baseline Mean (SD) |
After 14 Days Mean (SD) |
After One Year Mean (SD) |
Pre/Post Difference Mean (SD) |
95% CI* | P-value** |
| All surfaces | 45.7 (23.6) | 119.1 (49.7) | 60.8 (58.1) | 15.1 (55.1) | −24.3, 54.6 | 0.41 |
| Lingual surfaces | 0.8 (1.7) | 38.8 (23.8) | 10.3 (20.2) | 9.5 (20.5) | −5.2, 24.2 | 0.18 |
| Buccal surfaces | 28.8 (21.4) | 49.8 (18.4) | 37.7 (37.4) | 8.9 (35.7) | −16.7, 34.4 | 0.45 |
| Occlusal surfaces | 16.1 (12.5) | 30.5 (19.7) | 12.9 (8.0) | -3.2 (16.8) | −15.2, 8.8 | 0.56 |
| Maxillary occlusal surfaces | 7.8 (8.6) | 14.9 (11.1) | 5.7 (5.1) | -2.1 (10.0) | −9.3, 5.0 | 0.52 |
| Mandibular occlusal surfaces | 8.3 (4.6) | 15.6 (9.4) | 7.2 (4.1) | -1.1 (7.7) | −6.6, 4.4 | 0.66 |
| Posterior buccal surfaces | 14.9 (13.9) | 30.2 (12.1) | 22.7 (20.5) | 7.8 (18.5) | −5.5, 21.0 | 0.22 |
| Anterior buccal surfaces | 13.9 (10.2) | 19.6 (7.5) | 15.0 (21.6) | 1.1 (22.1) | −14.7, 16.9 | 0.88 |
*
95% confidence interval for the average change between pre-play and one year. See footnote A for exception.
**
Paired t-test, p-value
†
Statistically significant after adjustment for multiple testing, Holm’s method (p-value < 0.05)