Table 5 Spearman rank correlation coefficients for surface properties and bacterial levels
From: Orthodontic bonding procedures significantly influence biofilm composition
Day | Bacteria | Surface roughness (n = 36) | Water contact angle (n = 36) |
|---|---|---|---|
1 | Streptococcus mutans | 0.590*** | − 0.456** |
Porphyromonas gingivalis | 0.863*** | − 0.635*** | |
Total bacteria | 0.599*** | − 0.566*** | |
4 | Streptococcus mutans | 0.458** | − 0.351** |
Porphyromonas gingivalis | 0.465** | − 0.373** | |
Total bacteria | 0.844*** | − 0.573*** |