Impact of Orthodontic Brackets on the Intraoral Scan Data Accuracy
Table 1
Arch width digital measurements on 3D scan model images (unit: mm).
E4D Dentist
iTero
Model B
Model L
Significant
Model B
Model L
Significant
Maxillary intermolar width
53.49
53.87
2.06
NS
54.75
54.76
0.62
NS
Mandibular intermolar width
48.36
48.52
1.04
NS
48.80
49.43
0.77
Maxillary intercanine width
35.49
35.89
0.82
NS
36.66
36.81
0.31
Mandibular intercanine width
26.59
26.86
0.66
27.18
27.47
0.81
Trios
Zfx IntraScan
Model B
Model L
Significant
Model B
Model L
Significant
Maxillary intermolar width
54.66
54.77
0.64
NS
54.47
54.97
2.47
NS
Mandibular intermolar width
48.94
49.23
0.68
49.12
49.63
1.98
NS
Maxillary intercanine width
36.24
36.66
0.50
NS
36.49
36.61
0.70
NS
Mandibular intercanine width
27.41
27.54
0.31
NS
27.10
27.09
1.98
NS
Model B: median measurement of model B. Model L: median measurement of model L. : difference of maximum and minimum measurements among 10 images of buccal and lingual models, which refers to the largest distortion according to buccal and lingual brackets. (Mann–Whitney test). NS: not significant.
