Table 3.

Intra-class correlation coefficient (ICC) for inter-rater assessment for each study criterion (n: number of cases).

	Mesial Marginal Adaptation	Distal Marginal Adaptation	Mesial Proximal Contact	Distal Proximal Contact	Mesial GIC Overflow	Distal GIC Overflow	Mesial Alveolar Bone Resorption	Distal Alveolar Bone Resorption
Investigator #1 vs. Investigator #2	0.818 n = 56	0.762 n = 54	0.952 n = 52	0.935 n = 54	0.760 n = 55	0.920 n = 53	0.827 n = 49	0.984 n = 50
Investigator#1 vs. Investigator #3	0.671 n = 53	0.603 n = 51	0.972 n = 51	0.934 n = 54	0.807 n = 54	0.824 n = 52	0.831 n = 52	0.91 n = 52
Investigator #2 vs. Investigator #3	0.624 n = 54	0.619 n = 53	0.995 n = 51	0.998 n = 56	0.826 n = 54	0.757 n = 56	0.984 n = 47	0.903 n = 48