Liou A D, Nicholls J I, Yuodelis R A, Brudvik J S
Department of Restorative Dentistry, University of Washington, Seattle 98195.
Int J Prosthodont. 1993 Jul-Aug;6(4):377-83.
The accuracy of replacing three manufacturers' (Dental Imaging Associates, Implant Innovations Inc, and Steri-Oss) tapered transfer impression copings into impressions made with two different materials (Impregum F and Extrude) was evaluated. Five operators replaced these copings into the elastomeric impression materials. The angular deviations (replacement error) of the copings between the control (original) position and the replaced position in the impressions were evaluated. It was found that no one coping could be replaced into the impressions accurately and consistently by all five operators. However, there were significant differences in replacement accuracy between the three copings. Lower angular deviations were found for the Steri-Oss and Dental Imaging Associates copings when compared to the Implant Innovations coping. There was no significant difference in replacement accuracy between the two impression materials.
评估了将三家制造商（牙科影像协会、种植体创新公司和思康）的锥形转移印模帽替换到由两种不同材料（依必安F和挤压材料）制成的印模中的准确性。五名操作人员将这些印模帽替换到弹性印模材料中。评估了印模中对照（原始）位置与替换位置之间印模帽的角度偏差（替换误差）。结果发现，没有一个印模帽能被所有五名操作人员准确且一致地替换到印模中。然而，三种印模帽之间的替换准确性存在显著差异。与种植体创新公司的印模帽相比，思康和牙科影像协会的印模帽角度偏差更低。两种印模材料之间的替换准确性没有显著差异。
