Table 5. Mean (SD) roughness in Ra (µm). Similar uppercase letters represent non-significant differences between different printing systems and printing angles (Tukey’s HSD test, p<0.05).

Angle, degrees	LCD	DLP
0	1.80 (0.28)A	2.58 (0.39)B
45	2.59 (1.12)B	2.90 (0.78)B
90	1.61 (0.51)A	2.78 (0.57)B