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  • Title: A laboratory investigation of the accuracy of the repositioning impression coping technique at the implant level for single-tooth implants.
    Author: Daoudi MF, Setchell DJ, Searson LJ.
    Journal: Eur J Prosthodont Restor Dent; 2003 Mar; 11(1):23-8. PubMed ID: 12705035.
    Abstract:
    This study investigated the accuracy of the repositioning impression technique at the implant level using vinyl polysiloxane impression material. Three groups each of ten senior dentists, postgraduate students and technicians were asked to use this technique to record the position of an implant in a master model. The Reflex Microscope was used to measure variations between the resulting casts and the master model. Significant difference between the casts and the master model in the X and Y-axes (p < 0.01) was recorded. Alarming inclinational and rotational errors for the implant analogue position were measured with all groups of operators. Similar distortion in the Z-axis was recorded.
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