Lee Sang-Youp, Jeong Baren, Lee Whal, Park Moo Kyun
Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea.
Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea.
J Med Educ Curric Dev. 2024 Oct 4;11:23821205241289500. doi: 10.1177/23821205241289500. eCollection 2024 Jan-Dec.
Three-dimensional (3D) printed temporal bone model draws great attention as a promising alternative for conventional cadaveric model in education of otologic surgery. However, its high price and requirement for specialized tools hinder widespread use. We devised a simple educational model based on lattice structure to overcome these problems and compared it with a commercial model.
We converted high-resolution temporal bone computed tomography images into stereolithography format, and printed it using the G005 3D printing system from CUBICON. In this process, the part to be drilled out was made of lattice structure. We evaluated the model by a questionnaire prepared in advance, and compared the results with those of a commercial model.
We created an educational 3D printed temporal bone lattice model one-tenth the cost of commercial temporal bone. Our model reproduced the important structures of the temporal bone, produced less dust, and had similar strength and grinding sensation compared to the commercial model. The surface texture and reproducibility were comparable to the commercial model. Although most of structures were remodeled more elaborately in the commercial model than our model, our model demonstrated significant potential as a cost-effective educational tool for medical students and residents.
3D printed temporal bone lattice model has potential for widespread use due to low cost and easy accessibility. Further improvements in the fine structures of the temporal bone are necessary to enhance its utility as an educational model.
三维（3D）打印颞骨模型作为耳科手术教育中传统尸体模型的一种有前景的替代方案，备受关注。然而，其高昂的价格和对专用工具的需求阻碍了其广泛应用。我们设计了一种基于晶格结构的简单教育模型来克服这些问题，并将其与商业模型进行比较。
我们将高分辨率颞骨计算机断层扫描图像转换为立体光刻格式，并使用CUBICON的G005 3D打印系统进行打印。在此过程中，待钻出的部分采用晶格结构。我们通过预先准备的问卷对模型进行评估，并将结果与商业模型的结果进行比较。
我们创建了一个教育用3D打印颞骨晶格模型，其成本仅为商业颞骨模型的十分之一。我们的模型再现了颞骨的重要结构，产生的粉尘较少，与商业模型相比具有相似的强度和磨削感。表面纹理和再现性与商业模型相当。尽管商业模型中的大多数结构比我们的模型重塑得更精细，但我们的模型作为一种经济高效的医学生和住院医师教育工具具有显著潜力。
3D打印颞骨晶格模型因其低成本和易于获取而具有广泛应用的潜力。为了提高其作为教育模型的实用性，有必要进一步改进颞骨的精细结构。
