Background: to evaluate the flexural strength and surface roughness 3D printed composites with different orientations (0, 45and90 degrees orientations) and Composite modified blocks with two thicknesses 1mm and 1.5 mm. Materials and Methods: 64 specimens were constructed divided into 4 groups then tested for flexural strength and surface roughness. The first group (C) n=16 was made of Crios, then divided into two subgroups according to thicknesses Subgroup (I) 1 mm n=8, Subgroup (II) 1.5 mm n=8. The other three groups (P) n=48 was printed using Flexcera and divided into three different groups with three different angles P0° n=16; P45° n=16; P90° n=16, then divided into two subgroups Subgroup (I) 1 mm n=8 Subgroup (II) 1.5 mm n=8