Evaluation of marginal and internal gap of three-unit metal framework according to subtractive manufacturing and additive manufacturing of CAD/CAM systems.

Purpose: To evaluate the fit of a three-unit metal framework of fixed dental prostheses made by subtractive and additive manufacturing.

Materials And Methods: One master model of metal was fabricated. Twenty silicone impressions were made on the master die, working die of 10 poured with Type 4 stone, and working die of 10 made of scannable stone.