Table 1. Medians (P25-P75) of the absorbance values obtained in the cell metabolism (MTT) assay for the control and chlorexidine (CHX) solutions according to the exposure time.
| Groups* | Exposure time | ||
|---|---|---|---|
| 2 h | 60 s | 60 s +24-h recovery | |
| 0.06 % CHX | 0.1947 (0.1863-0.2103) A,a** | 0.2679 (0.2370-0.2815) AB,b | 0.1200 (0.1166-0.1300) A,c |
| 0.12% CHX | 0.1679 (0.1601- 0.1736) B,a | 0.2591 (0.2457-0.2676) A,b | 0.1239 (0.1140-0.1294) A,c |
| 0.2% CHX | 0.1535 (0.1472-0.1544) C,a | 0.2359 (0.2009-0.2964) ABC,b | 0.1174 (0.1121-0.1275) AB,c |
| 1% CHX | 0.1408 (0.1373-0.1442) D,a | 0.2437 (0.2277-0.2552) B,b | 0.1184 (0.1094-0.1247) AC,c |
| 2% CHX | 0.1264 (0.1226-0.1381) E,a | 0.2123 (0.1941-0.2211)C,b | 0.1131 (0.1062-0.1177) BC,c |
| α-MEM | 0.5661 (0.5438-0.5961) F,a | 0.4616 (0.3811-0.4691) D,b | 0.4902 (0.4732-0.5357) D,c |
| H2O2 | 0.0700 (0.0666-0.0725) G,a | 0.1211 (0.1121-0.1327) E,b | 0.1291 (0.1176-0.1363) A,b |
*
n=10 for each period within the same group;
**
Different uppercase letters in columns and different lowercase letters in rows indicate statistically significant difference (Mann-Whitney. p>0.05).