Research Article
Impact of Nanoparticles Additions on the Strength of Dental Composite Resin
Table 5
Descriptive statistics, one-way ANOVA, and pairwise comparisons for FS and surface properties of different subgroups.
| Group | Flexural strength (MPa) | Hardness (VHN) | ΔRa (μm) | Mean ± SD |
| N0 | 73.2 ± 8.5D | 63 ± 1.8C | 0.0028 ± 0.0004C | Z3 | 111.8 ± 8.5B | 67.8 ± 1.9B | 0.0019 ± 0.0002A | Z7 | 128.5 ± 8.9A | 70.0 ± 2A | 0.0022 ± 0.0005AB | T3 | 91.0 ± 2.9C | 65.7 ± 1.6B | 0.0018 ± 0.0003A | T7 | 80.7 ± 5.8D | 66.3 ± 1.9B | 0.0027 ± 0.0002C | S3 | 95.2 ± 2.8C | 66.1 ± 1.3B | 0.0020 ± 0.0003AB | S7 | 82.6 ± 3.3D | 68.1 ± 0.9B | 0.0026 ± 0.0004C | P-value | <0.001 | <0.001 | <0.001 | Effect size | 0.817 | 0.636 | 0.705 |
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: Significant at , different superscripts vertically indicate statistically significant difference between groups. |