Kim Eun-Kyong, Park Eun Young, Kang Sohee
Department of Dental Hygiene, College of Science and Technology, Kyungpook National University, Sangju, Korea.
Department of Dentistry, Yeungnam University College of Medicine, Daegu, Korea.
J Yeungnam Med Sci. 2023 Jul;40(3):302-307. doi: 10.12701/jyms.2022.00612. Epub 2022 Nov 4.
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.
随着数字牙科的最新发展，三维（3D）打印技术和材料的研究正在积极进行。我们报告了使用熔融沉积建模（FDM）打印机用聚乳酸（PLA）3D打印临时冠的临床应用和结果。2022年6月至8月，从大学医学中心牙科诊所计划接受单个全冠修复治疗的患者中招募了5名参与者。我们将使用FDM打印机用PLA 3D打印的冠作为临时冠，并对其不适、断裂和松动情况进行评估。3D打印的临时冠在永久修复体准备好之前一直保持完好，没有断裂、松动或不适。打印临时冠平均所需时间约为7分钟。使用FDM打印机用PLA 3D打印临时冠对牙医来说是一个方便的过程。然而，这些冠有一些局限性，如表面质地粗糙和半透明；因此，应改进3D打印工艺以生产出更好的修复体。
