Table 3.

Intra-examiner reliability values for direct tooth-coloured posterior and anterior restorations across 10 examiners in relation to the selected FDI criteria

Intra-examiner reliability		Posterior restorations				Anterior restorations
		Nominal data set (scores 1–5 incl. “not applicable”)		Ordinal data set (scores 1–5 only)		Nominal data set (scores 1–5 incl. “not applicable”)		Ordinal data set (scores 1–5 only)
Criteria	Evaluation round	% Agreement	Cohen Kappa	% Agreement	Weighted Kappa	% Agreement	Cohen Kappa	% Agreement	Weighted Kappa
F1	1 vs. 2	66.4	0.57	67.5	0.74	74.2	0.63	73.3	0.76
	2 vs. 3	58.4	0.48	59.7	0.66	70.0	0.54	69.3	0.68
F2	1 vs. 2	73.2	0.66	72.8	0.75	62.5	0.49	62.2	0.60
	2 vs. 3	67.2	0.59	67.2	0.72	61.7	0.48	62.0	0.61
F4	1 vs. 2	72.8	0.65	67.5	0.67	69.2	0.60	63.0	0.60
	2 vs. 3	70.0	0.61	64.3	0.62	66.7	0.56	60.0	0.56
B1	1 vs. 2	62.4	0.47	63.3	0.66	72.1	0.49	71.3	0.63
	2 vs. 3	70.4	0.57	72.5	0.73	73.3	0.48	72.8	0.68
B2	1 vs. 2	69.2	0.51	68.6	0.65	75	0.54	74.9	0.51
	2 vs. 3	68.4	0.51	68.9	0.64	75.8	0.57	75.8	0.47
A1	1 vs. 2	71.6	0.61	68.4	0.63	59.6	0.44	56.1	0.47
	2 vs. 3	66.8	0.56	62.7	0.59	67.5	0.54	65.3	0.59
A2	1 vs. 2	70.8	0.61	64.2	0.60	68.3	0.57	66.1	0.57
	2 vs. 3	70.8	0.61	64.9	0.61	56.8	0.55	64.2	0.67
A3	1 vs. 2	80.8	0.71	80.2	0.76	63.3	0.47	60.3	0.50
	2 vs. 3	76.1	0.64	77.4	0.70	67.9	0.54	65.4	0.58

Criteria: F1: fracture of material and Retention, F2: marginal adaptation, F4: form and contour, B1: caries at restoration margin (CAR), B2: dental hard tissue defects, A1: surface lustre and texture, A2: marginal staining, A3: colour match