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Table 5 Descriptive statistics (error in μm, medians and quartiles, means and 95% CIs) for linear and cross distances

From: Trueness of 12 intraoral scanners in the full-arch implant impression: a comparative in vitro study

Scanner Linear distances Cross distances
Median (Q1–Q3)a Median (Q1–Q3)b Mean (95% CI)c Median (Q1–Q3)a Median (Q1–Q3)b Mean (95% CI)c
CS 3600® 0.0 (−9.2–8.0) 8.0 (4.0–19.0) −3.0 [−15.7; 9.7] 60.5 (−2.5–109.2) 62.5 (19.2–109.2) 70.9 [−3.0; 144.8]
CS 3700® 5.5 (−15.8–19.5) 19.0 (10.0–26.8) 1.2 [− 15.3; 17.7] 5.5 (−25.0–39.2) 35.0 (20.5–50.0) 15.0 [−7.2; 37.2]
DWIO® − 58.5 (− 104.5–-36.2) 58.5 (36.2–104.5) −76.5 [− 109.8; −43.3] −12.5 (− 119.0–55.5) 111.0 (46.5–230.2) − 20.0 [−86.8; 46.8]
EMERALD® −35.0 (−69.8–-11.8) 41.0 (16.0–69.8) −40.1 [−67.4; − 12.7] − 24.0 (− 112.8–40.8) 103.0 (34.5–122.0) −27.6 [− 105.9; 50.8]
EMERALD S® − 38.0 (− 51.8–-19.2) 38.0 (19.2–51.8) −41.7 [− 67.9; − 15.6] − 131.0 (− 220.8–-97.2) 131.0 (97.2–220.8) − 156.0 [− 216.3; − 95.7]
ITERO ELEMENTS 5D® 0.0 (−6.0–13.0) 11.0 (4.0–17.8) −1.2 [− 19.5; 17.2] 8.5 (− 18.2–46.8) 36.0 (14.5–57.2) 13.9 [− 3.7; 31.5]
MEDIT I-500® − 0.5 (− 11.5–5.8) 8.0 (3.0–16.8) −2.2 [− 12.9; 8.6] − 6.0 (− 27.5–23.5) 27.0 (15.5–54.0) −9.6 [− 20.3; 1.2]
OMNICAM® −8.5 (− 30.5–10.5) 23.0 (9.8–52.0) −6.6 [− 26.5; 13.3] 15.0 (−48.5–138.2) 88.5 (27.5–150.2) 52.3 [− 12.0; 116.7]
PRIMESCAN® 3.5 (− 2.0–9.0) 6.5 (3.0–11.0) −0.8 [− 8.0; 6.4] 41.5 (7.0–86.8) 41.5 (14.8–86.8) 50.2 [6.9; 93.6]
RUNEYES® 18.5 (− 1.0–33.2) 23.0 (15.0–34.8) 16.4 [3.0; 29.8] 114.0 (49.2–216.8) 114.0 (49.2–216.8) 142.4 [64.0; 220.9]
TRIOS 3® −30.0 (− 37.0–-19.2) 30.0 (22.0–37.0) −25.4 [− 41.8; −9.0] − 78.5 (− 124.2–-50.0) 78.5 (56.0–124.2) − 83.7 [− 122.4; − 45.1]
VIRTUO VIVO® −14.0 (− 25.5–0.5) 15.5 (6.2–25.5) − 18.0 [− 35.9; − 0.1] −51.0 (− 85.5–-11.0) 55.5 (30.2–87.8) −74.4 [− 85.7; − 63.0]
  1. aMedian (interquartile range) error calculated on raw data
  2. bMedian (interquartile range) absolute error
  3. cMean error (95% CI) estimated using linear mixed effects models