Table 2 The means, in MPa, and standard deviations (SD) of BFS and the p values of the independent t-tests comparing Zir-MCF with Zir-TNC, and LS2-MCF with LS2-TNC.

From: The influence of core-build up materials on biaxial flexural strength of strength-gradient zirconia and lithium disilicate ceramics: an in-vitro study

 

Zir-MCF

Zir- TNC

p value

LS2-MCF

LS2-TNC

p value

σ1

49.7 (5.3)

55.8 (4.3)

0.002

63.4 (6.2)

66.6 (5.2)

0.157

σ2

679.5 (52.9)

835.8 (89.4)

0.000

340.5 (26.8)

453.2 (44.4)

0.000

σ1 stress

8.3 (0.9)

8.7 (0.7)

0.18

8.0 (0.8)

6.8 (0.5)

0.000

σ2 stress

240.1(25.7)

184.5 (14.3)

0.000

99.0 (9.7)

61.8 (4.9)

0.000

  1. σ1 is stress in composite core materials, σ2 is the stress in the ceramic materials, σ1stress is the interfacial stress values at the composite layers and σ2stress is the interfacial stress at the ceramic layers.
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