表 2. Comparison of the precision of different impression methods.
不同取模方法的精确度比较
| Group | Implant positions | CI (n = 21) | IOS (n = 21) | PIC (n = 21) | ICam4D (n = 21) | η2 | P |
| All abbreviations are explained in the first footnote to Table 1. The precision is evaluated by measuring the intra-group standard deviation (μm) of multiple measurements under the same experimental conditions. The smaller the value, the better the precision.* P < 0.05, vs. CI; △ P < 0.05, vs. IOS; # P < 0.05, vs. PIC. | |||||||
| A | Left premolar | 24.50 ± 12.52 | 31.84 ± 18.43 | 14.32 ± 8.13*, △ | 3.80 ± 2.32*, △, # | 0.45 | < 0.05 |
| Left lateral | 40.54 ± 26.26 | 14.06 ± 7.97* | 20.56 ± 12.36* | 3.64 ± 1.48*, △, # | 0.46 | < 0.05 | |
| Right lateral | 39.27 ± 25.18 | 16.29 ± 7.97* | 20.81 ± 9.02*, △ | 4.03 ± 1.71*, △, # | 0.46 | < 0.05 | |
| Right premolar | 39.34 ± 29.41 | 28.82 ± 17.50 | 24.11 ± 12.36 | 4.74 ± 1.71*, △, # | 0.33 | < 0.05 | |
| Global | 41.10 ± 14.47 | 24.82 ± 13.16* | 21.54 ± 7.71* | 4.40 ± 0.78*, △, # | 0.62 | < 0.05 | |
| B | Left premolar | 19.77 ± 11.18 | 37.53 ± 25.58* | 12.54 ± 4.52△ | 2.98 ± 2.88*, △, # | 0.45 | < 0.05 |
| Left lateral | 15.44 ± 6.69 | 15.87 ± 7.87 | 11.83 ± 5.87 | 1.53 ± 1.19*, △, # | 0.50 | < 0.05 | |
| Right lateral | 18.81 ± 13.37 | 18.30 ± 7.21 | 28.10 ± 18.73 | 3.31 ± 1.87*, △, # | 0.36 | < 0.05 | |
| Right premolar | 27.64 ± 18.11 | 43.92 ± 34.46 | 18.30 ± 11.73△ | 3.55 ± 1.95*, △, # | 0.35 | < 0.05 | |
| Global | 23.62 ± 7.55 | 35.44 ± 16.22* | 20.21 ± 8.75△ | 3.31 ± 1.45*, △, # | 0.58 | < 0.05 | |
| C | Left premolar | 27.85 ± 16.37 | 89.32 ± 70.99* | 13.23 ± 4.93*, △ | 4.26 ± 2.57*, △, # | 0.47 | < 0.05 |
| Left lateral | 28.66 ± 15.80 | 33.79 ± 13.08 | 14.09 ± 5.21*, △ | 4.43 ± 2.11*, △, # | 0.56 | < 0.05 | |
| Right lateral | 31.30 ± 14.92 | 32.90 ± 12.37 | 15.01 ± 6.91*, △ | 1.76 ± 1.20*, △, # | 0.62 | < 0.05 | |
| Right premolar | 32.51 ± 20.10 | 53.62 ± 39.80 | 18.97 ± 8.32*, △ | 3.82 ± 1.99*, △, # | 0.41 | < 0.05 | |
| Global | 32.63 ± 13.27 | 63.08 ± 32.34* | 16.15 ± 3.80*, △ | 4.06 ± 1.37*, △, # | 0.63 | < 0.05 | |
| D | Left premolar | 45.05 ± 33.35 | 50.66 ± 40.18 | 11.67 ± 5.05*, △ | 3.64 ± 1.69*, △, # | 0.39 | < 0.05 |
| Left lateral | 29.81 ± 19.22 | 19.87 ± 8.37 | 13.50 ± 5.25*, △ | 2.89 ± 2.14*, △, # | 0.46 | < 0.05 | |
| Right lateral | 38.67 ± 21.96 | 33.52 ± 24.62 | 12.12 ± 3.74*, △ | 3.01 ± 1.98*, △, # | 0.45 | < 0.05 | |
| Right premolar | 28.64 ± 17.68 | 83.60 ± 55.54* | 11.57 ± 3.53*, △ | 3.82 ± 1.61*, △, # | 0.55 | < 0.05 | |
| Global | 38.39 ± 20.12 | 60.25 ± 23.67* | 12.79 ± 2.77*, △ | 3.77 ± 1.13*, △, # | 0.68 | < 0.05 | |
| E | Left premolar | 21.78 ± 9.19 | 85.48 ± 75.19* | 14.51 ± 5.67*, △ | 4.05 ± 2.02*, △, # | 0.42 | < 0.05 |
| Left lateral | 20.89 ± 10.22 | 25.76 ± 13.57 | 12.73 ± 5.12*, △ | 4.66 ± 1.65*, △, # | 0.46 | < 0.05 | |
| Right lateral | 17.05 ± 6.39 | 41.46 ± 27.99* | 18.80 ± 12.26△ | 4.65 ± 2.20*, △, # | 0.43 | < 0.05 | |
| Right premolar | 41.75 ± 28.38 | 66.63 ± 43.32 | 16.40 ± 8.73*, △ | 4.13 ± 2.84*, △, # | 0.47 | < 0.05 | |
| Global | 29.80 ± 11.11 | 70.34 ± 27.76* | 16.53 ± 6.17*, △ | 4.82 ± 0.95*, △, # | 0.73 | < 0.05 | |
| F | Left premolar | 44.29 ± 32.60 | 84.81 ± 64.33 | 13.37 ± 7.83*, △ | 5.11 ± 2.71*, △, # | 0.44 | < 0.05 |
| Left lateral | 27.72 ± 14.96 | 35.46 ± 17.13 | 14.64 ± 6.45*, △ | 1.87 ± 1.54*, △, # | 0.55 | < 0.05 | |
| Right lateral | 37.17 ± 21.38 | 34.86 ± 15.32 | 14.20 ± 6.83*, △ | 4.61 ± 2.29*, △, # | 0.52 | < 0.05 | |
| Right premolar | 28.32 ± 11.14 | 99.43 ± 74.39* | 9.82 ± 4.24*, △ | 4.47 ± 3.44*, △, # | 0.52 | < 0.05 | |
| Global | 39.20 ± 12.34 | 80.31 ± 34.54* | 13.78 ± 3.36*, △ | 4.68 ± 1.60*, △, # | 0.73 | < 0.05 | |