Accuracy of occlusal splints printed in different orientations by liquid crystal display technology: an in vitro study.

Objectives: To evaluate the accuracy of occlusal splints printed in different orientations by liquid crystal display technology.

Methods: An occlusal splint was digitally designed, and additively manufactured using an LCD printer (Phrozen Sonic 4k, Phrozen) at three orientations relative to the printer building plate: 0, 45, and 70 degrees (n=10). The 3D-printed occlusal splints were digitised using a desktop scanner, resulting in experimental meshes.