*2.5. Digital Light Processing-Cast (DLP Cast)*

The fourth group was the three-dimensional-printed resin patterns using digital light processing (DLP) (M-One; MAKEX Technology, Zhejiang, China). A 3D printer (MiiCraft 125; MiiCraft, Jena, Germany) was used with a photo-polymerized biocompatible polymer resin (Freeprint Temp; DETAX GmbH & Co., Ettlingen, Germany). The printer settings included 50 μm thickness, 405 nm wavelength, and a curing time of 2.40 s per layer. The resin copings were casted to metal copings and measured before the final adjustments. A similar casting process was employed as described in earlier Section 2.2.

All coping samples were assessed for surface micro roughness and marginal misfit on the master die replica.
