Table 2.
Values of the Mann–Whitney U test for Approximal Plaque Index (API).
| Comparison | API | U | Z | p-Value |
|---|---|---|---|---|
| Orthodontically treated and control group | API1 | 2416.0 | 0.4194 | 0.6749 |
| API2 | 1285.0 | 5.0237 | <0.0001 | |
| API3 | 1306.5 | 4.9220 | <0.0001 |
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