Complete Denture Prosthodontics, Department of Oral Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan.
Dent Mater J. 2012 Feb 3;31(1):40-6. doi: 10.4012/dmj.2011-113. Epub 2012 Jan 21.
A new trial method for complete dentures using rapid prototyping (RP) was compared with the conventional method. Wax dentures were fabricated for 10 edentulous patients. Cone-beam CT was used to scan the wax dentures. Using 3D computer-aided design software, seven 3D denture images with different artificial teeth arrangements were made and seven trial dentures per patient were fabricated accordingly. Two prosthodontists performed a denture try-in for one patient using both conventional and RP methods. The prosthodontists and patients rated satisfaction for both methods using a visual analogue scale. Satisfaction ratings with both conventional and RP methods were compared using the Wilcoxon signed-rank test. Regarding prosthodontist's ratings, esthetics and stability were rated significantly higher with the conventional method than with the RP method, whereas chair time was rated significantly longer with the RP method than with the conventional method. Although further improvements are needed, the trial method applying RP seems promising.
一种使用快速原型制作技术（RP）的全口义齿新试验方法与传统方法进行了比较。为 10 名无牙颌患者制作蜡基托。使用锥形束 CT 扫描蜡基托。使用 3D 计算机辅助设计软件，制作了 7 个具有不同人工牙排列的 3D 义齿图像，并相应地为每位患者制作了 7 个试戴义齿。两位修复医生分别使用传统方法和 RP 方法为一位患者进行了义齿试戴。修复医生和患者使用视觉模拟量表对两种方法的满意度进行了评分。使用 Wilcoxon 符号秩检验比较了两种方法的满意度评分。关于修复医生的评分，传统方法在美观性和稳定性方面的评分明显高于 RP 方法，而 RP 方法的椅旁时间明显长于传统方法。尽管还需要进一步改进，但应用 RP 的试验方法似乎很有前途。
