Table 1.
Mean values of Total Microbial Counts (TMC) at 22 and 37 °C, Pseudomonas aeruginosa, Legionella spp., and mean free and total chlorine values detected in all water sampling points (taps, spittoons, and handpieces).
| DENTAL CLINIC 1 | ||||||
|---|---|---|---|---|---|---|
| SAMPLING POINT | TMC 22 °C (CFU/mL) | TMC 37 °C (CFU/mL) |
Pseudomonas aeruginosa (CFU/100mL) |
Legionella spp. (CFU/l) |
Free Chlorine (mg/L) |
Total Chlorine (mg/L) |
| Tap | 2 ± 0.9 | 0 | 0 | <100 | 0.22 ± 0.07 | 0.23 ± 0.08 |
| Spittoon | 2 ± 1.0 | 0 | 0 | <100 | 0.18 ± 0.05 | 0.22 ± 0.06 |
| Handpieces | 0 | 0 | 0 | <100 | 0.17 ± 0.09 | 0.18 ± 0.07 |
| DENTAL CLINIC 2 | ||||||
| Tap | 0 | 0 | 0 | <100 | 0.18 ± 0.06 | 0.22 ± 0.08 |
| Spittoon | 0 | 0 | 0 | <100 | 0.18 ± 0.05 | 0.22 ± 0.04 |
| Handpieces | 0 | 0 | 0 | <100 | 0.17 ± 0.07 | 0.18 ± 0.05 |
| DENTAL CLINIC 3 | ||||||
| Tap | 1 ± 0.02 | 0 | 0 | <100 | 0.22 ± 0.05 | 0.23 ± 0.08 |
| Spittoon | 0 | 0 | 0 | <100 | 0.20 ± 0.07 | 0.22 ± 0.06 |
| Handpieces | 0 | 0 | 0 | <100 | 0.18 ± 0.08 | 0.23 ± 0.04 |
| DENTAL CLINIC 4 | ||||||
| Tap | 3 ± 0.05 | 0 | 0 | <100 | 0.22 ± 0.07 | 0.22 ± 0.07 |
| Spittoon | 0 | 0 | 0 | <100 | 0.22 ± 0.07 | 0.22 ± 0.06 |
| Handpieces | 0 | 0 | 0 | <100 | 0.17 ± 0.05 | 0.20 ± 0.08 |
| DENTAL CLINIC 5 | ||||||
| Tap | 0 | 0 | 0 | <100 | 0.22 ± 0.08 | 0.22 ± 0.08 |
| Spittoon | 0 | 0 | 0 | <100 | 0.17 ± 0.07 | 0.20 ± 0.08 |