We present a computational design method that optimizes the reinforcement of dentures and increases the stiffness of dentures. Our approach optimally places reinforcement in the denture, which modern multi-material three-dimensional printers could implement. The study focuses on reducing denture displacement by identifying regions that require reinforcement (E-glass material) with the help of topology optimization. Our method is applied to a three-dimensional complete lower jaw denture. We compare the displacement results of a non-reinforced denture and a reinforced denture that has two materials. The comparison results indicate that there is a decrease in the displacement in the reinforced denture. Considering node-based displacement distribution, the reinforcement reduces the displacement magnitudes in the reinforced denture compared to the non-reinforced denture. The study guides dental technicians on where to automatically place reinforcement in the fabrication process, helping them save time and reduce material usage.

翻译：本文提出一种计算设计方法，用于优化义齿增强结构并提升义齿刚度。该方法通过优化增强材料在义齿中的布局，可借助现代多材料三维打印技术实现。本研究聚焦于通过拓扑优化识别需要增强的区域（采用E-玻璃材料），从而减少义齿位移。我们将该方法应用于三维下颌全口义齿模型，对比了无增强义齿与双材料增强义齿的位移结果。对比分析表明，增强后义齿的位移显著减小。基于节点位移分布的观测显示，相较于无增强义齿，增强结构有效降低了义齿的位移幅度。本研究为牙科技师在制造过程中自动定位增强区域提供了指导，有助于节省时间并减少材料消耗。