Table 2. Mean (standard deviation) L* and WI D according to spatula type, time, and resin .
| Parameter | Resin composite | Spatula | Time | ||
|---|---|---|---|---|---|
| Immediate | After polishing | After 24-hour storage in water | |||
| Mean (standard deviation) | Mean (standard deviation) | Mean (standard deviation) | |||
| L* | Suprananofilled | Non-manipulated | 91.07 (1.49) Ab | 91.18 (1.30) Ab | 91.07 (1.99) Ab |
| Almore Millennium | 90.81 (2.53) Ab | 90.89 (2.68) Ab | 90.49 (2.86) Ab | ||
| #3 Almore | 87.07 (2.30) Ac | 87.46 (2.47) Ac | 87.95 (2.48) Ac | ||
| LM-Arte Modella | 86.30 (1.99) Ac | 86.10 (1.95) Ac | 86.39 (1.68) Ac | ||
| Plastic | 93.60 (2.02) Aa | 93.51 (2.03) Aa | 93.94 (2.28) Aa | ||
| p-value | p(spatula)<0.0001; p(time)=0.3967; p(interaction)=0.3626 | ||||
| Nanohybrid | Non-manipulated | 86.00 (0.54) Aa | 85.77 (0.68) Aa | 85.69 (0.63) Aa | |
| Almore Millennium | 85.47 (2.23) Aa | 86.07 (1.82) Aa | 86.16 (2.06) Aa | ||
| #3 Almore | 84.68 (1.01) Aa | 84.77 (1.69) Aa | 84.78 (1.10) Aa | ||
| LM-Arte Modella | 85.36 (1.11) Aa | 85.41 (1.32) Aa | 85.46 (1.54) Aa | ||
| Plastic | 85.67 (0.47) Aa | 85.41 (0.68) Aa | 85.46 (0.83) Aa | ||
| p-value | p(spatula)=0.1678; p(time)=0.7942; p(interaction)=0.5271 | ||||
| WI D | Suprananofilled | Non-manipulated | 44.62 (0.84) Aa | 44.02 (1.11) Ba | 42.64 (0.86) Ca |
| Almore Millennium | 39.19 (3.98) Abc | 38.37 (3.95) Bbc | 36.66 (4.19) Cc | ||
| #3 Almore | 40.83 (1.39) Ab | 40.59 (1.73) Ab | 39.60 (1.31) Bb | ||
| LM-Arte Modella | 37.23 (2.13) Ac | 37.16 (1.95) Ac | 36.35 (1.50) Ac | ||
| Plastic | 44.17 (0.65) Aa | 43.33 (0.73) Ba | 41.97 (0.76) Ca | ||
| p-value | p(spatula)<0.0001; p(time)<0.0001; p(interaction)=0.1830 | ||||
| Nanohybrid | Non-manipulated | 34.24 (0.45) Aa | 32.72 (1.01) Ba | 31.36 (0.75) Ca | |
| Almore Millennium | 33.27 (1.05) Aa | 32.64 (1.37) Ba | 30.83 (1.41) Ca | ||
| #3 Almore | 33.55 (0.62) Aa | 32.44 (1.09) Ba | 30.94 (0.88) Ca | ||
| LM-Arte Modella | 34.04 (2.26) Aa | 32.52 (1.52) Ba | 30.78 (1.44) Ca | ||
| Plastic | 33.45 (0.59) Aa | 32.60 (0.82) Ba | 31.28 (1.20) Ca | ||
| p-value | p(spatula)=0.4937; p(time)<0.0001; p(interaction)=0.6817 | ||||
The same letters (uppercase horizontally and lowercase vertically, comparing the spatula types in each resin), indícate that there is no statistically significant difference within each variable (p > 0.05).