pISSN 2234-7518
eISSN 2005-372X

Table. 2.

Sample raw data for precision acquired from one patient using an i500 scanner (mm)

Distance 1 2 3 4 5 6
Difference between scans
(1), (2) −0.021 −0.091 −0.146 −0.062 −0.098 0.002
(1), (3) −0.004 −0.070 −0.112 −0.024 −0.045 −0.007
(1), (4) −0.005 −0.097 −0.168 −0.045 −0.082 0.004
(1), (5) −0.089 0.018 0.018 0.004 −0.002 −0.002
(2), (3) 0.017 0.021 0.035 0.039 0.053 −0.009
(2), (4) 0.016 −0.006 −0.022 0.017 0.016 0.003
(2), (5) 0.020 0.109 0.165 0.066 0.096 −0.003
(3), (4) −0.009 −0.027 −0.057 −0.022 −0.037 0.011
(3), (5) 0.003 0.089 0.130 0.027 0.043 0.006
(4), (5) 0.004 0.115 0.187 0.049 0.080 −0.006

Pairwise differences from the five repeated scans [(1)–(5)] were calculated and the mean was regarded as the precision of the scanner for the patient.

1, distance between reference spheres 1 and 2; 2, distance between reference spheres 1 and 3; 3, distance between reference spheres 1 and 4; 4, distance between reference spheres 2 and 3; 5, distance between reference spheres 2 and 4; 6, distance between reference spheres 3 and 4.

Korean J Orthod 2021;51:363~365 https://doi.org/10.4041/kjod.2021.51.6.363
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