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Change in the flexural modulus (a) and flexural strength (b) of the FDM dumbbells due to the DH or MH sterilization process as measured in the PETG 3D-printed samples. Grey bar: control sample; blue bar: dry heat sterilization; and red bar: moist heat sterilization. a,b Different letters show statistically significant differences between formulations (p < 0.05).
