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Table 2 Hardness Knoop (KHN – Kgf/mm 2 ) means values and standard deviations of the top and bottom in the three resin composites

From: Influence of the composition of different resin composites in the Knoop hardness and bond strength between tooth/restoration

Composite region

Z100

Supreme

Silorane

Top

74.1 (9.0) a,A

58.4 (3.6) a,B

42.8 (6.2) a,C

Bottom

66.7 (13.6) b,A

61.2 (3.4) a,A

40.0 (3.0) a,B

  1. Means followed by distinct lowercase letters in collum and distinct uppercase letters in line are statistically different in 5% level signifficance by Tukey test.