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KMID : 1812320230400030302
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Journal of Yeungnam Medical Science
2023 Volume.40 No. 3 p.302 ~ p.307
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Three-dimensional printing of temporary crowns with polylactic acid polymer using the fused deposition modeling technique: a case series
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Kim Eun-Kyong
Park Eun-Young
Kang So-Hee
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Abstract
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With recent developments in digital dentistry, research on techniques and materials for three-dimensional (3D) printing is actively underway. We report the clinical applications and outcomes of 3D printing of temporary crowns fabricated with polylactic acid (PLA) using a fused deposition modeling (FDM) printer. Five participants were recruited from among patients scheduled to be treated with a single full-coverage crown at a dental clinic in a university medical center from June to August 2022. We used 3D-printed crowns fabricated with PLA using an FDM printer as temporary crowns and were assessed for discomfort, fracture, and dislodging. The 3D-printed temporary crowns were maintained without fracture, dislodging, or discomfort until the permanent prosthesis was ready. The average time required for printing the temporary crowns was approximately 7 minutes. The 3D printing of temporary crowns with PLA using an FDM printer is a convenient process for dentists. However, these crowns have some limitations, such as rough surface texture and translucency; therefore, the 3D printing process should be improved to produce better prostheses.
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KEYWORD
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Digital dentistry, Polylactic acid, Temporary dental restoration, Three-dimensional printing
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