| Post treatment time | CIE parameter | Ca(OH)2 | Ca(OH)2-CHX | Pilot |
| Reference color | L* | 49.6 ± 8.86 | 50.3 ± 6.92 | 54.3 |
| a* | 4.68 ± 4.15 | 7.03 ± 3.67 | 4.9 | |
| b* | 5.58 ± 3.81 | 6.55 ± 3.53 | 13.4 | |
| 1 week | L* | 43.24 ± 6.3 | 41.98 ± 6.35 | 53.6 |
| a* | 4.52 ± 5.58 | 5.26 ± 2.7 | 5.1 | |
| b* | 6.81 ± 4.27 | 7.18 ± 3.63 | 10.8 | |
| 1 month | L* | 49.67 ± 8.58 | 49.08 ± 7.7 | 55.7 |
| a* | 4.01 ± 4.01 | 3.7 ± 3.27 | 5.2 | |
| b* | 7.21 ± 3.31 | 7.94 ± 4.26 | 12.3 | |
| 2 months | L* | 51.72 ± 10.1 | 49.41 ± 6.02 | 56.3 |
| a* | 1.26 ± 3.61 | 4 ± 3.1 | 5.5 | |
| b* | 8.16 ± 3.51 | 8.12 ± 4.64 | 12.4 | |
| 3 months | L* | 53.82 ± 10.9 | 50.36 ± 6.41 | 55.9 |
| a* | 1.27 ± 3.75 | 3.95 ± 3.22 | 5 | |
| b* | 8.56 ± 3.77 | 8.52 ± 5.04 | 13.6 |