Table 2.
Materials, surface finishing and groups
| Materials surface finishing and groups | ||||
|---|---|---|---|---|
| HC (E) | polishing+distilled | polishing+cola | polishing+tea | polishing+coffee |
| water E1a | E1b | E1c | E1d | |
| sof-lex+distilled | sof-lex+cola | sof-lex+tea | sof-lex+coffee | |
| water E2a | E2b | E2c | E2d | |
| shofu+distilled | shofu+cola | shofu+tea | shofu+coffee | |
| water E3a | E3b | E3c | E3d | |
| RNC (L) | polishing+distilled | polishing+cola | polishing+tea | polishing+coffee |
| water L1a | L1b | L1c | L1d | |
| sof-lex+distilled | sof-lex+cola | sof-lex+tea | sof-lex+coffee | |
| water L2a | L2b | L2c | L2d | |
| shofu+distilled | shofu+cola | shofu+tea | shofu+coffee | |
| water L3a | L3b | L3c | L3d | |