Falk Anders, Vult von Steyern Per, Fransson Håkan, Thorén Margareta Molin
Int J Prosthodont. 2015 Mar-Apr;28(2):179-80. doi: 10.11607/ijp.4132.
The aim of this study was to evaluate the reliability of the impression replica technique with a four-unit zirconia fixed dental prosthesis (FDP). Marginal and internal fit were measured by repeatedly placing the FDP on an epoxy cast using light-body silicone material corresponding to cement. All measured marginal and internal fit points showed varying values. The greatest variations were seen at the most distal margin (33 μm) and at the distal abutment of the FDP (77 μm). The results showed that the technique gives moderate variations and is a useful method to evaluate marginal and internal fit.
本研究的目的是评估使用四单位氧化锆固定义齿（FDP）的印模复制技术的可靠性。通过使用与粘固剂对应的轻质硅酮材料将FDP反复放置在环氧树脂模型上来测量边缘适合性和内部适合性。所有测量的边缘和内部适合点均显示出不同的值。在最远中边缘（33μm）和FDP的远中基牙处（77μm）观察到最大的变化。结果表明，该技术存在适度的变化，是评估边缘和内部适合性的一种有用方法。
