Table 2 Two-way ANOVA for materials (A) and radiation doses (B) on surface roughness, Vickers microhardness, and compressive strength.
From: Effect of ionizing radiation on the mechanical properties of current fluoride-releasing materials
Tests | df | Sum of squares | Mean square | F | p-value |
|---|---|---|---|---|---|
Surface roughness | |||||
Materials (A) | 3 | 349909.010 | 116636.337 | 145.012 | <0.001 |
Radiation doses (B) | 2 | 558942.107 | 279471.054 | 347.462 | <0.001 |
A X B | 6 | 131287.561 | 21881.260 | 27.205 | <0.001 |
Microhardness | |||||
Materials (A) | 3 | 51891.849 | 17297.283 | 1447.783 | <0.001 |
Radiation doses (B) | 2 | 604.495 | 302.248 | 25.298 | <0.001 |
A X B | 6 | 633.837 | 105.640 | 8.842 | <0.001 |
Compressive strength | |||||
Materials (A) | 3 | 329714.601 | 109904.867 | 361.531 | <0.001 |
Radiation doses (B) | 2 | 3259.115 | 1629.558 | 5.360 | 0.006 |
A X B | 6 | 4140.822 | 690.137 | 2.270 | 0.042 |
