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Table 1 Comparison of the mean and standard deviation values of the Tensile bond strength between the three groups pre and post aging

From: Comparison of tensile bond strength of ball attachments made of different materials to root canal dentin after chewing simulation

  TI PE PK F value P value
X (MPa) SD X (MPa) SD X (MPa) SD
T0 (pre aging) 6.5 0.29a 18.96 0.37b 19.24 0.24b 5653.91  < .00001
T1 (post aging) 5.08 0.22x 9.57 0.32y 9.64 0.35y 720.21  < .00001
  1. Different superscript lowercase letters (a, b) indicate significant difference between the three groups at T0. Different superscript lowercase letters (x, y) indicate significant difference between the three groups at T1
  2. X, mean; SD, standard deviation; T0, pre aging measurement; T1, post aging measurement; MPa. Mega Pascal unit