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Boxplots showing the bending moment at the time point of fracture depending on the abutment preparation for 1-piece (a) and depending on the implant-abutment-connection (IAC) for 2-piece (b) zirconia implants. Whiskers are used to represent all samples lying within 1.5 times the interquartile range. Dots represent outliers. Detailed data can be found in Table 3 and Table 4.
