Table 2.

Descriptive statistics: mean (SD); median; (Q1–Q3), in μm.

Scanner	S1	S2	S3	S4	S5	S6
PRIMESCAN®	25.4 (3.5); 25.0; (23.2–27.0)	22.6 (5.6); 20.5; (19.2–21.8)	31.0 (3.7); 32.0; (29.5–33.0)	28.5 (3.0); 28.0; (27.2–29.8)	22.2 (3.4); 21.5; (20.0–25.0)	23.3 (4.0); 22.0; (21.2–23.5)
CS 3700®	26.5 (4.5); 24.5; (23.2–29.2)	25.5 (3.9); 25.5; (23.0–26.8)	31.6 (2.8); 31.5; (30.0–33.5)	28.3 (2.7); 27.0; (27.0–28.8)	25.9 (4.4); 25.0; (23.0–27.0)	24.7 (4.2); 23.0; (21.2–28.0)
MEDIT i-500®	27.0 (2.3); 26.0; (25.2–29.0)	27.0 (1.7); 26.5; (26.0–28.0)	37.3 (2.6); 37.0; (36.0–37.8)	34.4 (2.6); 34.0; (33.0–35.0)	26.1 (2.4); 25.5; (24.2–27.8)	27.4 (2.2); 28.0; (25.2–29.0)
ITERO ELEMENTS 5D®	38.9 (19.2); 32.5; (32.0–34.8)	29.1 (1.6); 28.0; (28.0–30.5)	42.4 (2.6); 42.5; (40.2–43.0)	39.8 (1.8); 39.5; (39.0–40.8)	30.5 (2.1); 30.5; (29.2–32.5)	30.9 (2.8); 31.0; (28.8–32.8)
Emerald S®	34.2 (2.3); 33.0; (33.0–36.2)	30.9 (2.3); 30.5; (29.2–31.8)	48.0 (2.5); 47.5; (46.2–49.0)	48.3 (2.2); 48.5; (46.5–49.8)	38.5 (2.5); 38.5; (36.5–39.8)	29.9 (2.5); 29.5; (29.0–30.0)