Jin Su-Jin, Jeong Il-Do, Kim Ji-Hwan, Kim Woong-Chui
Int J Comput Dent. 2018;21(2):107-113.
This study evaluated the accuracy (trueness and precision) of dental models fabricated using additive manufacturing (AM) methods such as PolyJet and fused deposition modeling (FDM).
10 stone models were acquired for the control group by scanning a complete arch model. For the experimental groups, 10 PolyJet models and 10 FDM models were fabricated from digital impressions using an intraoral scanner. All 30 models were then scanned, and root mean square values were measured using three-dimensional (3D) analysis software.
Trueness did not significantly differ between the stone and PolyJet models. The precision of the AM models was significantly higher than that of the stone models. The layer thicknesses of the FDM models were greater than those of the PolyJet models.
The results of this study show that it might be possible for the dental models fabricated using additive manufacturing methods to be used in clinical settings.
本研究评估了使用增材制造（AM）方法（如PolyJet和熔融沉积建模（FDM））制作的牙科模型的准确性（真实性和精密度）。
通过扫描完整牙弓模型为对照组获取10个石膏模型。对于实验组，使用口腔内扫描仪从数字印模制作10个PolyJet模型和10个FDM模型。然后对所有30个模型进行扫描，并使用三维（3D）分析软件测量均方根值。
石膏模型和PolyJet模型之间的真实性没有显著差异。增材制造模型的精密度显著高于石膏模型。FDM模型的层厚大于PolyJet模型。
本研究结果表明，使用增材制造方法制作的牙科模型有可能用于临床环境。
