Page 12 - 南京医科大学自然版

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·1694 · 南 京 医 科 大 学 学 报 2025年12月

表1 针对每个扫描杆和每种口内扫描仪，3种取模方法的正确度和精密度比较
Table 1 For each scanbody，comparison of trueness and precision of the 3 tested impression techniques in the 2 intraoral
scanners （μm）
Trueness（n=10） Precision（n=10）
Scanbody
Mean SD Max Min Mean SD Max Min
1
TR3⁃without scan aids 043.09 a 029.22 115.27 6.24 059.62 a 42.21 147.68 4.48
TR3⁃with scan aids 011.04 b 007.93 22.68 2.19 011.53 b 6.54 23.36 2.09
TR3⁃calibration 011.32 b 005.53 22.22 3.24 014.70 b 8.80 34.68 2.79
Ao3⁃without scan aids 042.62 a 011.41 58.11 26.64 015.71 a 8.49 32.93 2.42
Ao3⁃with scan aids 044.61 a 008.35 58.76 30.18 010.65 b 6.77 28.81 0.93
b a
Ao3⁃calibration 012.67 006.46 26.33 4.28 014.89 6.36 30.53 5.24
2
TR3⁃without scan aids 057.10 a 068.65 228.55 4.56 094.97 a 86.15 308.36 7.19
TR3⁃with scan aids 015.41 b 005.72 23.37 7.98 013.54 b 7.12 27.84 2.69
TR3⁃calibration 018.87 b 007.81 33.14 7.08 019.24 b 9.66 46.90 5.26
Ao3⁃without scan aids 046.41 012.20 65.20 28.77 018.95 a 9.08 40.89 4.90
b
Ao3⁃with scan aids 038.97 005.20 49.23 30.66 010.70 5.85 26.87 1.60
Ao3⁃calibration 048.70 012.20 64.93 31.89 018.41 a 8.60 37.02 4.24
3
TR3⁃without scan aids 150.45 a 069.63 271.23 48.69 199.39 a 123.89 451.32 27.13
TR3⁃with scan aids 057.64 b 008.17 71.97 47.12 042.55 b 19.97 96.42 8.69
TR3⁃calibration 052.40 b 019.16 88.58 24.52 043.09 b 17.37 77.03 6.36
a a
Ao3⁃without scan aids 124.60 032.03 195.22 82.58 049.89 23.21 115.39 12.05
Ao3⁃with scan aids 096.89 b 010.48 109.09 76.64 024.26 b 10.44 50.55 5.87
Ao3⁃calibration 070.01 c 020.42 110.58 45.43 047.10 a 19.93 96.89 10.63
4
TR3⁃without scan aids 475.42 a 100.87 673.29 371.52 368.08 a 191.68 784.39 32.12
TR3⁃with scan aids 200.94 b 014.72 225.18 188.09 047.20 b 22.74 105.16 7.94
c b
TR3⁃calibration 063.92 020.85 104.45 39.43 063.15 26.96 132.67 7.21
Ao3⁃without scan aids 324.45 a 046.11 410.04 278.02 122.94 a 49.70 259.41 35.49
Ao3⁃with scan aids 210.84 b 019.51 240.93 174.99 050.81 b 20.34 104.67 13.73
Ao3⁃calibration 160.73 c 027.08 220.45 132.91 055.64 b 29.53 138.98 15.30
5
TR3⁃without scan aids 599.72 a 145.55 973.49 464.27 464.64 a 247.86 1 000.10 86.89
b b
TR3⁃with scan aids 267.34 040.10 315.63 195.09 083.23 31.72 143.78 27.80
TR3⁃calibration 077.23 c 023.17 120.27 45.87 063.82 b 30.00 148.58 11.77
Ao3⁃without scan aids 422.38 a 046.99 533.29 363.70 162.69 a 64.33 315.20 27.74
Ao3⁃with scan aids 251.08 b 036.10 315.12 196.89 070.24 b 31.34 159.83 19.19
Ao3⁃calibration 193.81 c 030.54 254.13 149.35 086.13 b 51.36 199.17 6.14
6
a a
TR3⁃without scan aids 745.17 269.55 1 394.20 423.41 630.54 333.36 1 386.50 132.85
TR3⁃with scan aids 348.69 b 057.01 434.85 243.77 096.36 b 47.90 240.70 17.38
TR3⁃calibration 099.75 c 027.45 153.23 68.13 096.11 b 39.25 171.41 22.40
Ao3⁃without scan aids 494.51 a 061.35 600.37 397.64 196.60 a 89.43 385.60 50.22
Ao3⁃with scan aids 258.07 b 045.85 326.55 188.74 088.67 b 40.08 197.77 22.92
Ao3⁃calibration 163.86 c 025.13 212.97 123.02 096.48 b 55.52 220.17 18.74
The different lowercase indicates a statistically significant difference between the 3 tested impression techniques（P < 0.05）. SD ：standard
deviation；Min：minimum；Max：maximum. TR3：TRIOS 3 intraoral scanner；Ao3：Aoralscan 3 intraoral scanner.