Table 1.
Total bacterial count (colony-forming units) in the study groups.
| Group IV (Controls) |
Group III (Water) |
Group I (Glycine) a |
Group II (Trehalose) b |
|
|---|---|---|---|---|
| n | 14 | 14 | 14 | 14 |
| Mean value | 2.02 × 108 | 7.25 × 107 | 3.12 × 106 | 2.23 × 107 |
| Standard deviation | 1.19 × 108 | 8.16 × 107 | 2.97 × 106 | 2.53 × 107 |
| Median value | 2.04 × 108 | 4.58 × 107 | 1.96 × 106 | 1.36 × 107 |
| Maximum value | 4.51 × 108 | 3.06 × 108 | 9.30 × 106 | 7.50 × 107 |
| Minimum value | 5.14 × 107 | 2.00 × 106 | 1.46 × 105 | 5.22 × 105 |
| Interquartile range | 1.37 × 108 | 6.17 × 107 | 3.22 × 106 | 2.34 × 107 |
| Percentage reduction | 77.6 | 99.0 | 93.3 |
a Glycine-based powder: Air-Flow Perio (EMS, Nyon, Switzerland). b Trehalose-based powder: Lunos Prophy Powder Perio Combi (Duerr Dental, Bietigheim-Bissingen, Germany).