Table 2.
The mean (standard deviation) of enamel Vickers microhardness values (kg/mm2) before and after treatment with toothpastes with different pH level; difference in microhardness and percentage of changes
| Toothpaste | ppm | pH | Baseline microhardness | Final microhardness | Δ microhardness | Percentage changes |
|---|---|---|---|---|---|---|
| Vademecum Anticaries and Naturel | 1450 | 6.83 | 317.00 (11.89) | 336.9 (29.53) | 19.97 (22.08) | 6.20 (6.78) |
| 6.5 | 336.39 (29.41) | 354.28 (27.47) | 17.89 (21.20) | 5.55 (6.46) | ||
| 6.0 | 329.19 (17.13) | 338.21 (15.46) | 15.02 (14.09) | 4.76 (4.53) | ||
| 5.5 | 339.86 (35.02) | 340.36 (21.42) | 0.5. (22.75) | 0.64 (6.76) | ||
| Kalodont Pro-Care Herbal | 1000 | 6.92 | 346.62 (22.89) | 352.19 (20.79) | 5.57 (21.11) | 1.79 (6.18) |
| 6.5 | 345.11 (14.60) | 345.55 (27.56) | 1.00 (22.71) | 0.11 (6.66) | ||
| 6.0 | 369.43 (24.96) | 362.87 (24.87) | −6.56 (16.51) | −1.69 (4.43) | ||
| 5.5 | 330.78 (35.51) | 347.45 (34.72) | 16.67 (23,20) | 5.32 (7.26) | ||
| Signal Kids | 450 | 7.09 | 352.71 (18.11) | 360.95 (19.96) | 8.24 (18.28) | 2.44 (5.41) |
| 6.5 | 323.62 (33.55) | 332.81 (24.37) | 9.19 (21.43) | 3.23 (7.42) | ||
| 6.0 | 347.64 (20.00) | 353.55 (26.40) | 5.91 (14.61) | 1.66 (4.28) | ||
| 5.5 | 358.02 (33.65) | 339.00 (22.22) | −19.02 (20.71) | −4.95 (5.73) | ||
| Kalodont Wild Strawberry | 0 | 6.81 | 368.19 (45.58) | 342.76 (46.26) | −25.43 (24.61) | −6.82 (6.52) |
| 6.5 | 331.17 (36.01) | 330.17 (14.84) | −1.00 (31.00) | 0.60 (10.58) | ||
| 6.0 | 348.09 (30.04) | 331.10 (31.06) | −17.00 (38.27) | −4.45 (10.44) | ||
| 5.5 | 367.88 (29.98) | 361.98 (26.78) | −5.90 (10.02) | −1.53 (2.57) |
N=7 specimens per experimental condition. SDs are shown in parentheses. There is not statistically different at P<0.05 by Newman-Keuls test. SD: Standard deviation