Zhao Tian, Weng Yi, Li Ning, Gao Yiming
Stomatology Centre, Ruijin Hospital, School of Stomatology, Shanghai JiaoTong University, Shanghai, China.
Front Bioeng Biotechnol. 2025 May 21;13:1556651. doi: 10.3389/fbioe.2025.1556651. eCollection 2025.
This study evaluates prosthodontists' satisfaction and efficiency of custom tray fabrication methods in completely edentulous mandibular jaw patients. A digital workflow was established, incorporating 3D scanning for preliminary impressions, CAD for designing border extensions and ensuring uniform 3D space, and 3D printing for tray fabrication. Three methods were compared: CAD/3D printing, light-cured resin, and impression compound trimming. Prosthodontist satisfaction was assessed using a visual analog scale, and manual fabrication time was analyzed. Dislocation tests were performed to evaluate tray retention. The CAD/3D printing method achieved the highest satisfaction across most parameters ( < 0.05), the best stability and retention ( < 0.05), and significantly reduced manual fabrication time ( < 0.05). The light-cured resin method showed moderate performance, while the impression compound trimming method scored lowest. The CAD/3D printing technique enhances satisfaction, precision, and efficiency, demonstrating significant potential for optimizing prosthodontic workflows. Further exploration in broader clinical applications is recommended.
本研究评估了全口无牙下颌患者中，口腔修复医师对定制托盘制作方法的满意度和效率。建立了一种数字化工作流程，包括用于初步印模的3D扫描、用于设计边缘延伸和确保均匀3D空间的CAD以及用于托盘制作的3D打印。比较了三种方法：CAD/3D打印、光固化树脂和印模膏修整。使用视觉模拟量表评估口腔修复医师的满意度，并分析手工制作时间。进行脱位测试以评估托盘固位。CAD/3D打印方法在大多数参数上满意度最高（<0.05），稳定性和固位最佳（<0.05），并显著减少了手工制作时间（<0.05）。光固化树脂方法表现中等，而印模膏修整方法得分最低。CAD/3D打印技术提高了满意度、精度和效率，显示出优化口腔修复工作流程的巨大潜力。建议在更广泛的临床应用中进一步探索。
