Table 1 Comparison of measurements determined using three models
Reference model | Plaster model | Digital model | Difference (plaster - reference) | Difference (digital - reference) | Difference (plaster - digital) | |
|---|---|---|---|---|---|---|
Measurements | Mean (SD), mm | Mean (SD), mm | Mean (SD), mm | Mean (95% CI), mm | Mean (95% CI), mm | Mean (95% CI), mm |
Lateral incisor width, right | 5.90 (0.00) | 5.98 (0.04) | 5.87 (0.10) | 0.08 (0.04, 0.13) | -0.03 (-0.14, 0.08) | 0.11 (0.04, 0.20) |
Central incisor width, right | 5.31 (0.02) | 5.34 (0.04) | 5.25 (0.20) | 0.03 (-0.01, 0.07) | -0.06 (-0.27, 0.16) | 0.09 (-0.11, 0.29) |
Central incisor width, left | 5.11 (0.07) | 5.19 (0.02) | 5.17 (0.08) | 0.08 (0.01, 0.16) | 0.06 (0.02, 0.10) | 0.02 (-0.05, 0.10) |
Lateral incisor width, left | 5.87 (0.04) | 5.82 (0.04) | 5.78 (0.04) | -0.05 (-0.12, 0.02) | -0.09 (-0.14, -0.03) | 0.04 (-0.05, 0.12) |
AS, right | 23.48 (0.27) | 23.54 (0.20) | 23.88 (0.27) | 0.06 (-0.30, 0.41) | 0.40 (-0.15, 0.95) | -0.34 (-0.64, -0.04) |
AS, left | 23.60 (0.16) | 23.78 (0.08) | 24.08 (0.36) | 0.18 (0.01, 0.36) | 0.48 (-0.02, 0.99) | -0.30 (-0.74, 0.14) |
RS (calculated) | 21.24 (0.03) | 21.32 (0.02) | 21.17 (0.17) | 0.08 (0.05, 0.11) | -0.07 (-0.24, 0.11) | 0.15 (-0.02, 0.31) |
ALD, right | 2.25 (0.27) | 2.22 (0.20) | 2.71 (0.42) | -0.03 (-0.37, 0.33) | 0.46 (-0.25, 1.17) | -0.49 (-0.95, -0.03) |
ALD, left | 2.36 (0.16) | 2.46 (0.08) | 2.91 (0.51) | 0.10 (-0.09, 0.30) | 0.55 (-0.10, 1.20) | -0.45 (-1.03, 0.13) |