Table 1. Comparison of flow load, energy until flow, energy until fracture and stiffness per statistical analyses; 95% confidence interval, 95% confidence interval for the mean value.
| Variable | n | Mean value | 95% CI for the mean value | Minimum value | Maximum value | p -value a | Significant difference b |
|---|---|---|---|---|---|---|---|
| Flow load (N) | |||||||
| CG | 10 | 697 | 559–835 | 316 | 1,010 | Control ≠ PMMA | |
| TGW/O | 5 | 665 | 480–851 | 376 | 860 | 0.029 | No PMMA ≠ PMMA |
| TGW | 5 | 999 | 865–1,133 | 813 | 1,215 | ||
| Energy until flow (mm) | |||||||
| CG | 10 | 7.7 | 7.0–8.4 | 5.3 | 9.5 | ||
| TGW/O | 5 | 7.2 | 6.5–7.8 | 6.1 | 8.1 | 0.55 | |
| TGW | 5 | 7.7 | 7.1–84 | 6.7 | 8.4 | ||
| Energy up to the flow (J) | |||||||
| CG | 10 | 2.8 | 2.2–3.4 | 0.9 | 3.8 | ||
| TGW/O | 5 | 2.4 | 1.6–3.2 | 1.1 | 3.3 | 0.044 | No PMMA ≠ PMMA |
| TGW | 5 | 3.8 | 3.3–4.4 | 3.1 | 4.5 | ||
| Stiffness (N/mm) | |||||||
| CG | 10 | 90 | 73–107 | 60 | 138 | ||
| TGW/O | 5 | 93 | 69–116 | 62 | 123 | 0.035 | Control ≠ PMMA |
| TGW | 5 | 130 | 108–152 | 103 | 166 | ||
Abbreviations: CG, control group; CI, confidence interval; PMMA, polymethylmethacrylate; TGW, test group with; TGW/O, test group without.
a
One-way ANOVA.
b
Statistically significant differences at the 5% level according to Tukey's multiple comparison test.