pISSN 2234-7518
eISSN 2005-372X

Table. 1.

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

Distance 1 2 3 4 5 6
Reference (A)* 15.750 39.762 45.200 29.449 39.146 14.322
Actual value (B) Pt1_i500 (1) 15.782 39.907 45.418 29.541 39.285 14.334
Pt1_i500 (2) 15.763 39.800 45.245 29.481 39.193 14.348
Pt1_i500 (3) 15.741 39.783 45.220 29.408 39.091 14.324
Pt1_i500 (4) 15.773 39.829 45.132 29.471 39.076 14.355
Pt1_i500 (5) 15.771 39.851 45.353 29.486 39.230 14.346
Deviation (B-A) Pt1_i500 (1) 0.032 0.146 0.218 0.092 0.139 0.011
Pt1_i500 (2) 0.013 0.038 0.045 0.032 0.047 0.026
Pt1_i500 (3) −0.009 0.022 0.019 −0.041 −0.055 0.002
Pt1_i500 (4) 0.023 0.067 −0.068 0.022 −0.070 0.033
Pt1_i500 (5) 0.021 0.089 0.152 0.037 0.084 0.024

For each patient, distances were measured for each of the five scans [(1)–(5)] performed per scanner. Then, the difference between the distance measured from the reference scan and the intraoral scan was calculated. Mean absolute distances were regarded as the trueness for the scanner.

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.

*Indicates the distance measured from the scans taken with the industrial scanner (Solutionix C500; Medit Corp., Seoul, Korea).

Indicates the distance measured from the intraoral scanner (i500; Medit Corp.).

Indicates the difference between the distance measured from the industrial scanner and the intraoral scanner.

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