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  • Title: A comparative study of two CEREC software systems in evaluating manufacturing time and accuracy of restorations.
    Author: Reich SM, Peltz ID, Wichmann M, Estafan DJ.
    Journal: Gen Dent; 2005; 53(3):195-8. PubMed ID: 15960477.
    Abstract:
    This study compared the manufacturing times and the accuracy of proximal and occlusal contacts on restorations produced by two different versions of CEREC 3 software, COS and 3D. Fourteen casts containing pre-existing inlay and onlay preparations of premolars and molars were mounted on articulators. A bite registration was made in maximum intercuspation. Optical impressions of the preparation and the bite registration were made. The Wilcoxon signed rank test was applied for a statistical analysis of time expended in the different design and manufacturing steps of both software versions. The chi-square test was applied for the statistical analysis of proximal and occlusal contacts.
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