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Plaque index (PI) change recorded at the first orthodontic checkup 1 month after professional cleaning and prophylaxis instruction
| Communication group (n = 28 + n = 26) | Control group (n = 30) | Comparison (P)a | |
|---|---|---|---|
| Plaque index | |||
| Median, (Iqr) | 0.3 (0.60) | 0.75 (1.30) | 0.0205 |
Iqr interquartile range
aTwo-sample Wilcoxon rank-sum (Mann–Whitney) test
