Table 3. Mean (standard deviation) ΔE ab and ΔE00 according to spatula type and resin at each time interval .
| Parameter | Resin composite | Spatula | Time point | |
|---|---|---|---|---|
| After polishing - Immediate | After 24 hours - Immediate | |||
| Mean (standard deviation) | Mean (standard deviation) | |||
| ΔE ab | Suprananofilled | Non-manipulated | 1.51 (0.58) a | 3.02 (0.82) a |
| Almore Millennium | 0.99 (0.57) a | 2.87 (0.74) a | ||
| #3 Almore | 1.30 (0.42) a | 2.69 (1.00) a | ||
| LM-Arte Modella | 1.42 (0.92) a | 2.35 (0.93) a | ||
| Plastic | 1.11 (0.51) a | 2.91 (0.72) a | ||
| Nanohybrid | Non-manipulated | 1.32 (0.68) a | *1.90 (0.77) a | |
| Almore Millennium | 1.46 (0.71) a | *2.17 (0.48) a | ||
| #3 Almore | 1.43 (0.45) a | *1.67 (0.64) a | ||
| LM-Arte Modella | 1.20 (0.75) a | *2.05 (0.83) a | ||
| Plastic | 1.13 (0.51)a | *1.58 (0.82) a | ||
| p-value | p(resin)=0.6481; p(spatula)=0.5894; p(interaction)=0.4288 | p(resin)<0.0001; p(spatula)=0.4886; p(interaction)=0.2751 | ||
| ΔE 00 | Suprananofilled | Non-manipulated | 1.03 (0.36) a | 2.14 (0.58) a |
| Almore Millennium | 0.69 (0.35) a | 1.89 (0.48) a | ||
| #3 Almore | 0.89 (0.26) a | 1.89 (0.66) a | ||
| LM-Arte Modella | 1.10 (0.97) a | 1.72 (0.84) a | ||
| Plastic | 0.75 (0.32) a | 1.97 (0.47) a | ||
| Nanohybrid | Non-manipulated | 0.95 (0.45) a | *1.41 (0.46) a | |
| Almore Millennium | 1.00 (0.47) a | *1.55 (0.32) a | ||
| #3 Almore | 0.98 (0.30) a | *1.28 (0.41) a | ||
| LM-Arte Modella | 0.96 (0.82) a | *1.61 (0.90) a | ||
| Plastic | 0.77 (0.35) a | *1.12 (0.53) a | ||
| p-value | p(resin)=0.5025; p(spatula)=0.3046; p(interaction)=0.5337 | p(resin)<0.0001; p(spatula)=0.5047; p(interaction)=0.1821 | ||
*Differs from the suprananofilled resin under the same spatula and time point conditions (p<0.05). Different letters in the vertical direction, comparing the spatula types with each resin, indicate statistically significant differences (p<0.05) in each evaluated parameter.