Fabrication and characterization of dental mirror product using polylactic acid biocomposites

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Abstract
Polylactic acid biocomposites were prepared by mixing castor oil and talc by melt blending using twin-screw extruder. The amount of talc and castor oil was fixed at 20 and 1 wt%, respectively. The biocomposites were analyzed using Fourier transform infrared spectroscopy, impact strength, bioactivity, cytotoxicity, and soil burial tests. Using biocomposites, mouth mirror product was fabricated for oral dental application using injection molding machine. The impact strength of biocomposites increases by 56% than neat polylactic acid. Bioactivity and cytotoxicity tests of the biocomposites prove that they have no toxicity and the product can be used for oral dental application.

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