Table 1.
Mean and standard deviation (SD) of Knoop Dentin Microhardness (KMH); and mean and SD of the integrated area of each chemical component, as well as ratios (M:M; C:M, amide I/amide III and amide I/CH2) analyzed by FTIR before and 90-days after EMD (Emdogain) treatment.
| Before EDM treatment (baseline) | After EDM treatment | p-value | |
|---|---|---|---|
| Dentin microhardness | 53.2 (10.1) | 49.5 (12.1) | = 0.35 |
| Chemical components | |||
| Phosphate | 13.15 (1.30) | 11.95 (1.79) | = 0.103 |
| Carbonate | 0.23 (0.03) | 0.16 (0.03) | = 0.001* |
| Amide I | 2.06 (0.36) | 2.22 (0.73) | = 0.685 |
| Amide III | 0.22 (0.05) | 0.16 (0.02) | = 0.002* |
| CH2 | 0.12 (0.04) | 0.14 (0.05) | = 0.395 |
| Ratios | |||
| M:M | 6.58 (1.40) | 5.72 (1.46) | = 0.293 |
| C:M | 0.017 (0.001) | 0.013 (0.001) | < 0.001** |
| Amide I/amide III | 9.70 (1.38) | 12.71 (1.71) | < 0.001** |
| Amide I/CH2 | 17.94 (4.43) | 17.50 (6.42) | = 0.857 |
*Indicates differences in root dentin chemical components (in rows) obtained by paired t-test (p < 0.05).
**Indicates differences in root dentin ratios (in rows) obtained by paired t-test (p < 0.05).