Table 1.

Descriptive statistics for caries depth measurements obtained using different methods are given in millimeters

Observer	Reading		Histology	Micro CT	CBCT (Iluma)	CBCT (Accuitomo)	Film	CCD (Rvg)
1	1
		Mean	3.5257	3.4905	3.4714	3.4875	3.0014	3.0448
		Median	3.5000	3.4100	3.6400	3.2550	2.8000	2.8100
		SD	1.25313	1.23278	1.09188	1.12962	.98717	1.07908
		Minimum	1.54	1.81	1.90	1.95	1.51	1.66
		Maximum	5.84	5.86	5.37	5.15	5.94	6.50
1	2
		Mean	3.5748	3.5090	3.4862	3.5065	2.9629	2.9900
		Median	3.3300	3.4000	3.5600	3.6000	2.8000	2.7000
		SD	1.25116	1.23745	1.11685	1.16207	1.03450	1.04113
		Minimum	1.80	1.79	1.80	1.90	1.50	1.60
		Maximum	5.90	5.86	5.45	5.25	6.00	6.10
2	1
		Mean	3.6095	3.5176	3.4929	3.4329	3.0376	3.0510
		Median	3.7800	3.3400	3.4000	3.2000	2.9000	2.8700
		SD	1.15680	1.12881	1.06354	1.07624	1.01788	1.02167
		Minimum	1.90	1.84	1.90	1.90	1.60	1.70
		Maximum	5.95	5.90	5.39	5.19	5.99	6.00
2	2
		Mean	3.6333	3.6048	3.4429	3.4700	2.9195	2.9476
		Median	3.5000	3.4800	3.5500	3.7000	2.8900	2.8700
		SD	1.19814	1.16154	1.05910	1.05714	.93118	1.03974
		Minimum	1.76	1.80	1.70	1.80	1.50	1.40
		Maximum	5.89	5.90	5.01	5.08	5.00	5.80
3	1
		Mean	3.5581	3.5705	3.4900	3.5029	2.8129	2.9062
		Median	3.8000	3.8000	3.2000	3.3000	2.8000	2.8000
		SD	1.23774	1.23973	1.08835	1.07052	.95900	1.08435
		Minimum	1.50	1.40	2.00	2.20	1.40	1.35
		Maximum	5.90	5.99	5.80	5.78	5.00	6.00
3	2
		Mean	3.5667	3.5443	3.3748	3.3995	2.9910	2.9524
		Median	3.5000	3.5000	3.0000	3.2500	2.8000	2.8000
		SD	1.23077	1.23520	1.02609	1.01945	1.19872	1.16860
		Minimum	1.80	1.80	1.90	2.00	1.60	1.60
		Maximum	5.90	5.90	5.24	5.25	6.20	6.00