Table 2.
Inter- and intra-examiner reliability (linear weighted κ values) for ratings of three-dimensional near-infrared reflection scans at 850 nm from the occlusal viewpoint (NIRR occlusal) and from trilateral evaluation (NIRR trilateral) as well as from digital bitewing radiography (BWR) with 0.95 confidence intervals (CI)
| Inter-examiner | Intra-examiner | |||
|---|---|---|---|---|
| Examiner 1 vs. Examiner 2 | Examiner 1 | Examiner 2 | ||
| NIRR occlusal | κ | 0.97 | 0.82 | 0.76 |
| Lower 0.95 CI | 0.93 | 0.74 | 0.66 | |
| Upper 0.95 CI | 1.00 | 0.91 | 0.86 | |
| NIRR trilateral | κ | 0.96 | 0.69 | 0.65 |
| Lower 0.95 CI | 0.92 | 0.59 | 0.55 | |
| Upper 0.95 CI | 0.99 | 0.79 | 0.75 | |
| BWR | κ | 0.85 | 0.90 | 0.91 |
| Lower 0.95 CI | 0.76 | 0.85 | 0.85 | |
| Upper 0.95 CI | 0.93 | 0.96 | 0.97 | |