Table 1 Signed deviation in tooth position between T2 and T2′ models.

From: Accuracy and reliability of maxillary digital model (MDM) superimposition in evaluating teeth movement in adults compared with CBCT maxillary superimposition

Variable

Mean (mm)

SD (mm)

p-value

RU6-x

 − 0.12

0.76

0.49

RU6-y

0.26

0.70

0.06

RU6-z

 − 0.08

0.19

0.11

RU6-total

0.90

0.59

 < 0.01

LU6-x

 − 0.17

0.41

0.13

LU6-y

0.12

0.49

0.18

LU6-z

 − 0.08

0.21

0.15

LU6-total

0.62

0.32

 < 0.01

RU1-x

 − 0.13

0.44

0.26

RU1-y

0.16

0.61

0.17

RU1-z

 − 0.10

0.42

0.40

RU1-total

0.76

0.44

 < 0.01

LU1-x

 − 0.14

0.35

0.12

LU1-y

0.13

0.57

0.21

LU1-z

 − 0.10

0.42

0.40

LU1-total

0.72

0.37

 < 0.01

  1. RU6 right maxillary first molar, LU6 left maxillary first molar, RU1 right maxillary central incisor, LR1 left maxillary central incisor.
  2. -x, y, z, the signed deviation along x, y or z axis; -total, the absolute deviation between landmarks on T2 and T2′ models.
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