Table 2 Intra-class correlation coefficients (ICC) for measurement of relative percentage of extrusion (RPE) and shrinkage

3

0.897 (0.806–0.946)

0.928 (0.897–0.952)

12

0.871 (0.758–0.936)

0.947 (0.934–0.959)

3

0.900 (0.812–0.950)

0.917 (0.895–0.924)

12

0.863 (0.740–0.933)

0.888 (0.796–0.902)

3

0.954 (0.914–0.977)

0.966 (0.953–0.978)

12

0.921 (0.851–0.962)

0.918 (0.897–0.926)

3

0.935 (0.878–0.968)

0.976 (0.966–0.990)

12

0.914 (0.839–0.957)

0.944 (0.929–0.955)