Craniofacial prostheses are commonly used to restore aesthetics for those suffering from malformed, damaged, or missing tissue. Traditional fabrication is costly, uncomfortable for the patient, and laborious; involving several hours of hand-crafting by a prosthetist, with the results highly dependent on their skill level. In this paper, we present an advanced manufacturing framework employing three-dimensional scanning, computer-aided design, and computer-aided manufacturing to efficiently fabricate patient-specific ear prostheses. Three-dimensional scans were taken of ears of six participants using a structured light scanner. These were processed using software to model the prostheses and 3-part negative moulds, which were fabricated on a low-cost desktop 3D printer, and cast with silicone to produce ear prostheses. The average cost was approximately $3 for consumables and $116 for 2 h of labour. An injection method with smoothed 3D printed ABS moulds was also developed at a cost of approximately $155 for consumables and labour. This contrasts with traditional hand-crafted prostheses which range from $2,000 to $7,000 and take around 14 to 15 h of labour. This advanced manufacturing framework provides potential for non-invasive, low cost, and high-accuracy alternative to current techniques, is easily translatable to other prostheses, and has potential for further cost reduction.

颅面假体通常用于为那些畸形，受损或缺失的组织恢复美观。传统制造成本高，患者不舒服且费力。修复师需要花费数小时的手工制作时间，其结果在很大程度上取决于他们的技能水平。在本文中，我们提出了一种先进的制造框架，该框架采用了三维扫描，计算机辅助设计和计算机辅助制造技术，可以有效地制造针对患者的专用耳假体。使用结构化光扫描仪对六个参与者的耳朵进行了三维扫描。使用软件对这些零件进行处理，以对假肢和三部分负模进行建模，然后将其用廉价的台式3D打印机制作，然后用硅树脂浇铸以生产耳假肢。耗材的平均成本约为3美元，人工2小时的平均成本约为116美元。还开发了一种具有平滑3D打印ABS模具的注塑方法，耗材和人工成本约为155美元。这与传统手工制作的假肢形成对比，传统假肢的价格从2,000美元到7,000美元不等，需要大约14至15小时的劳动。这种先进的制造框架为无创，低成本和高精度的替代技术提供了潜力，可轻松转换为其他假体，并具有进一步降低成本的潜力。000，大约需要14至15小时的劳动。这种先进的制造框架为无创，低成本和高精度的替代技术提供了潜力，可轻松转换为其他假体，并具有进一步降低成本的潜力。000，大约需要14至15小时的劳动。这种先进的制造框架为无创，低成本和高精度的替代技术提供了潜力，可轻松转换为其他假体，并具有进一步降低成本的潜力。