Table 5.
Intergroup and intragroup comparison of b* values obtained from groups
| b* Values | |||||||
|---|---|---|---|---|---|---|---|
| n/N | Baseline b0 | Bleaching b1 | Remineralization b2 | Staining b3 | T-statistic | P** | |
| 1A | 10/100 | 29.5 (27–31)a | 23.8 (22.2–26.1)b | 19.85 (17.3–22.2)c | 26.2 (23.8–28.3)abB | 30.000 | < 0.001 |
| 1B | 10/100 | 28.6 (27–30.1)a | 22.9 (21.2–24.4)b | 19 (17–20.1)c | 23.2 (22.1–24.2)bA | 27.120 | < 0.001 |
| 1C | 10/100 | 28.6 (28–30)a | 23.3 (22.7–24.8)b | 19 (18–20)c | 23.4 (22.8–25)bA | 28.080 | < 0.001 |
| 1D | 10/100 | 28.6 (28–30)a | 23.3 (22.8–24.7)b | 19.1 (18.1–20)c | 23.3 (22.8–25.3)bA | 27.120 | < 0.001 |
| 1E | 10/100 | 29 (28.5–30)a | 23.5 (23.1–24.7)b | 19.1 (18.5–20,1)c | 23.6 (21.6–24)bA | 28.041 | < 0.001 |
| 2A | 10/100 | 29.4 (27–31)a | 24.05 (22.2–25.8)b | 19.6 (17.3–21.6)c | 25.6 (23.8–28.1)abB | 30.000 | < 0.001 |
| 2B | 10/100 | 28.6 (27.1–29.1)a | 23.2 (21.2–24)b | 19 (17–19)c | 23.2 (21.9–25)bA | 28.041 | < 0.001 |
| 2C | 10/100 | 29 (28.5–30)a | 24 (23.1–24.8)b | 19.1 (18.6–20)c | 23.9 (23.5–24.6)bA | 28.250 | < 0.001 |
| 2D | 10/100 | 30 (28.6–30)a | 24.4 (23.3–24.7)b | 19.8 (19–20)c | 23.7 (23.2–25)bA | 28.041 | < 0.001 |
| 2E | 10/100 | 28.85 (28.5–30)a | 23.5 (23.1–24.7)b | 19.05 (18.5–20.1)c | 23 (21.6–24)bA | 29.510 | < 0.001 |
| T-statistic | 7.050 | 13.568 | 11.321 | 39.955 | |||
| P* | 0.632 | 0.139 | 0.254 | < 0.001 | |||
*Kruskal Wallis test, Dunn test; **Friedman test, Dunn test; data are expressed as median (min-max); a-c: There is no difference between those with the same letter in each group row; A-B: There is no difference between groups having the same letter in each column
*1A: Office-Control, 2A: Home-Control, 1B: Office-APF, 2B: Home-APF, 1C: Office-CPP-ACPF, 2C: Home-CPP-ACPF, 1D: Office-CaGP, F, 2D: Home-CaGP, F, 1E: Office-HAp, F, 2E: Home-HAp, F