Table 2 Nanoindentation creep (µm) of CAD-CAM composite blocks at 24 h dry storage at 23 ˚C and at three month water storage at 37 ˚C, compared to previously investigated bulk compressive creep [8], and nanohardness and elastic modulus at 24 h dry storage at 23 ˚C previously investigated [29]

Polymer- infiltrated ceramic network (PICN)

Vita Enamic (EN)

0.09 (0.015)^A,1

0.28 (0.009)^A,2

3.1 (0.17)^A

34.56 (1.4)^A

0.45 (0.07)^A,1

0.71 (0.1)^A,2

Resin-composite blocks (RCB)

Grandio Blocs (GR)

0.32 (0.01)^B,1

1.1 (0.1)^{B, E, 2}

1.3 (0.08)^B

14.8 (0.4)^B

0.50 (0.12)^A,B,1

0.91 (0.06)^A,2

Lava™ Ultimate (LU)

0.33 (0.03)^B,1

0.44 (0.02)^A,D,2

1.25 (0.05)^B

12.14 (0.76)^B

0.76 (0.08)^B,1

1.13 (0.15)^A,2

BRILLIANT Crios (BC)

0.31 (0.009)^B,1

0.79 (0.24)^{B, D, ,2}

0.85 (0.008)^C

10.98 (0.6)^C,D

0.55 (0.06)^{A,B 1}

1.42 (0.26)^{B,C 2}

Cerasmart (CS)

0.27 (0.006)^B,1

0.87 (0.09)^{B, D, F, 2}

0.81 (0.006)^C

10.36 (0.17)^C,D,E

0.99 (0.04)^{C, D 1}

1.74 (0.19)^B,2

Block HC (HC)

0.29 (0.03)^B,1

1.3 (0.2)^{E, F, 2}

0.775 (0.031)^C

8.79 (0.35)^{C,D, E}

1.09 (0.09)^D,1

1.85 (0.09)^B,2

Ceramic-filled PEEK

Dentokeep (DK)

0.31 (0.03)^B,1

3.46 (0.2)^C,2

0.34 (0.03)^D

3.43 (0.29)^D,E

NA

NA