Polylactic Acid as a Material for Three-Dimensional Printing of Provisional Restorations.

Purpose: To assess the marginal fit of provisional polylactic acid (PLA) crowns obtained via three-dimensional (3D) printing using a profile projector.

Materials And Methods: A stone cast was scanned, and 15 provisional dental crowns were designed and printed in PLA using a 0.2-mm nozzle and 135-degree build angle.