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

Pedro Molinero-Mourelle, Silvia Canals, Miguel Gómez-Polo, Ma Fernanda Solá-Ruiz, Jaime Del Río Highsmith, Alicia Celemín Viñuela

Int J Prosthodont. Jul/Aug 2018;31(4):349-350.

PMID: 29953566

Abstract:

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. The marginal fit was measured at six points on each crown using a profile projector.
Results and conclusion:
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.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP26100516 Polylactic acid Polylactic acid 26100-51-6 Price
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