Table 2: Comparison between Multi-strand wire (MS) and Ortho-Flex-Tech™ wire (OFT) retainer groups in terms of the gingival health parameters, IRI, and number of fractured retainers, standard deviation, 95% Confidence Interval, Median and Interquartile.
| MS group Mean (SD) [95% CI] |
OFT group Mean (SD) [95% CI] |
P-value | Median | 25 - 75 quartiles | 95% CI of the Difference |
|
|---|---|---|---|---|---|---|
| PI | 0.51 (0.60) [0.26-0.76] |
0.32 (0.51) [0.10-0.55] |
0.157 | 0.104 | 0.00 - 0.60 | -0.15 - 0.51 |
| GI | 0.93 (0.85) [0.58-1.29] |
1.10 (0.63) [0.82-1.38] |
0.459 | 1.15 | 0.33 - 1.69 | -0.62 - 0.28 |
| CI | 0.16 (0.44) [-0.03-0.34] |
0.25 (0.47) [0.04-0.46] |
0.165 | 0.00 | 0.00 - 0.00 | -0.36 - 0.18 |
| SOHI | 0.53 (0.52) [0.31-0.75] |
0.42 (0.40) [0.24-0.59] |
0.759 | 0.20 | 0.00 - 1.00 | -0.16 - 0.39 |
| IRI (mm) | 0.69 (0.71) [0.51-0.87] |
0.00 (0.00) - |
0.048* | 0.00 | 0.00 - 0.00 | 0.012 - 0.59 |
| FR (n) | 2 | 0 | 0.384 | - | - | - |
Mann-Whitney U test. Chi-square test (only for FR). * Significant (p < 0.05). PI: Plaque index. GI: Gingival index. CI: Calculus index. SOHI: Simplified oral hygiene index. IRI: Irregularity index. FR: Fractured Retainer.