Table 3.
Mean of CNR values of the ROIs according to groups and CBCT units evaluated
| ROI | Picasso Trio—Mean (SD) | ProMax 3D—Mean (SD) | 3D Accuitomo 80—Mean (SD) | ||||||
| Control | Titanium | Zirconium | Control | Titanium | Zirconium | Control | Titanium | Zirconium | |
| 1 | 9.61 (1.24) Aa | 9.41 (0.90) Aa | 8.41 (0.64) Ba | 14.52 (2.22) Aa | 12.63 (1.16) Aa | 8.47 (0.74) Bb | 4.12 (0.26) Aa | 4.11 (0.50) Aa | 3.56 (0.32) Abc |
| 2 | 10.12 (1.25) Aa | 10.31 (0.76) Aa | 9.66 (1.32) Ba | 14.66 (2.68) Aa | 14.89 (0.84) Aa | 10.60 (0.08) Bab | 4.28 (0.16) Aa | 4.61 (0.54) Aa | 4.42 (0.20) Aa |
| 3 | 10.11 (1.27) Aa | 9.29 (1.05) Aa | 8.31 (1.20) Ba | 14.07 (0.68) Aa | 13.88 (0.71) Aa | 9.51 (0.27) Bab | 4.12 (0.41) Aa | 4.15 (0.33) Aa | 3.81 (0.15) Aabc |
| 4 | 10.11 (1.27) Aa | 9.29 (1.05) Aa | 8.31 (1.20) Ba | 13.31 (1.23) ABa | 14.31 (0.84) Aa | 11.01 (1.09)Bab | 4.43 (0.18) Aa | 4.13 (0.26) Aa | 4.59 (0.63) Aa |
| 5 | 10.30 (1.32) Aa | 10.11 (0.75) Aa | 9.64 (1.30) Ba | 16.04 (3.27) Aa | 13.58 (1.30) Aa | 8.92 (1.64) Bb | 3.98 (0.06) Aa | 3.60 (0.53) Aa | 2.85 (0.26) Ac |
| 6 | 10.52 (1.60) Aa | 10.45 (0.96) Aa | 9.78 (1.38) Ba | 14.87 (0.77) Aa | 15.40 (0.84) Aa | 11.90 (0.14) Bab | 4.44 (0.46) Aa | 4.07 (0.08) Aa | 4.64 (0.16) Aa |
| 7 | 10.55 (1.20) Aa | 10.56 (0.81) Aa | 9.61 (1.32) Ba | 14.35 (1.29) ABa | 15.37 (1.31) Aa | 12.01 (0.06) Bab | 4.66 (0.78) Aa | 3.95 (0.31) Aa | 4.61 (0.43) Aa |
| 8 | 9.05 (0.84) Aa | 8.88 (0.91) Aa | 8.40 (1.45) Ba | 12.84 (1.23) Aa | 13.82 (1.39) Aa | 11.49 (0.66) Aab | 3.98 (0.22) Aa | 4.13 (0.35) Aa | 4.45 (0.18) Aab |
| 9 | 10.45 (1.35) Aa | 10.04 (0.79) Aa | 9.52 (1.22) Ba | 15.17 (2.48) Aa | 13.85 (1.07) Aa | 10.38 (0.82) Bab | 4.69 (0.67) Aa | 4.20 (0.46) Aa | 4.31 (0.49) Aab |
| 10 | 10.76 (1.11) Aa | 10.78 (0.82) Aa | 9.92 (1.20) Ba | 15.07 (2.06) Aa | 14.49 (0.59) Aa | 11.00 (1.01) Bab | 4.86 (0.60) Aa | 4.47 (0.05) Aa | 4.69 (0.27) Aa |
| 11 | 10.51 (1.15) Aa | 10.38 (0.83) Aa | 9.76 (1.40) Ba | 16.38 (2.36) Aa | 14.58 (0.68) ABa | 13.14 (1.33) Ba | 4.75 (0.25) Aa | 4.45 (0.33) Aa | 4.61 (0.22) Aa |
CBCT, cone beam CT; CNR, contrast-to-noise ratio; ROI, regions of interest; SD, standard deviation.
Different uppercase letters indicate statistical difference between control, titanium and zirconium groups within each CBCT unit; and different lowercase letters indicate statistical difference between ROIs within each group, according to ANOVA two-way.