Table 5.
Summary of Bonferroni Tests used to compare three gingival retraction systems with each other (multiple comparisons) with relation to time taken, vertical retraction and horizontal retraction
| Parameter/retraction systems (I) | (J) | Mean difference (I–J) | SE | P value | 95 % confidence interval | |
|---|---|---|---|---|---|---|
| Lower bound | Upper bound | |||||
| Time taken/ | ||||||
| Stay-put | Expasyl | 139.95* | 8.29 | 0.000 | 119.50 | 160.40 |
| Magic F | 135.35* | 8.29 | 0.000 | 114.90 | 155.80 | |
| Expasyl | Stay-put | −139.95* | 8.29 | 0.000 | −160.40 | −119.50 |
| Magic F | −4.60 | 8.29 | 1.000 | −25.05 | 15.85 | |
| Magic F | Stay-put | −135.35* | 8.29 | 0.000 | −155.80 | −114.90 |
| Expasyl | 4.60 | 8.29 | 1.000 | −15.05 | 25.05 | |
| Vertical retraction/ | ||||||
| Stay-put | Expasyl | 0.5815* | 9.628E−02 | 0.000 | 0.3440 | 0.8190 |
| Magic F | 0.2010 | 9.628E−02 | 0.124 | −3.6503E−02 | 0.4385 | |
| Expasyl | Stay-put | −0.5815* | 9.628E−02 | 0.000 | −0.8190 | -0.3440 |
| Magic F | −0.3805* | 9.628E−02 | 0.001 | −0.6180 | -0.1430 | |
| Magic F | Stay-put | −0.2010 | 9.628E−02 | 0.124 | −0.4385 | 3.6503E−02 |
| Expasyl | 0.3805* | 9.628E−02 | 0.001 | 0.1430 | 0.6180 | |
| Horizontal retraction/ | ||||||
| Stay-put | Expasyl | 8.200E−02* | 2.501E −02 | 0.005 | 2.030E−02 | 0.1437 |
| Magic F | 3.400E−02* | 2.501E−02 | 0.538 | −2.7696E−02 | −9.570E−02 | |
| Expasyl | Stay-put | −8.200E−02* | 2.501E−02 | 0.005 | −0.1437 | 2.030E−02 |
| Magic F | −4.800E−02 | 2.501E−02 | 0.180 | −0.1097 | −1.370E−02 | |
| Magic F | Stay-put | −3.400E−02* | 2.501E−02 | 0.538 | 9.5696E−02 | 22.770E−02 |
| Expasyl | 4.800E−02 | 2.501E−02 | 0.180 | −1.3696E−02 | 0.1097 | |
Magic F magic foam cord, SE standard error
*defines statistically significant value for a particular test