Abstract
To assess the marginal fit of provisional polylactic acid (PLA) crowns obtained via three-dimensional (3D) printing using a profile projector. 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. The marginal fit was measured at six points on each crown using a profile projector. Within the limitations of this study, the marginal fit of PLA provisional restorations was clinically acceptable, and the results were comparable to those observed with polymethyl methacrylate provisional restorations.
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