Table 3.

Results of the quantitative light-induced fluorescence (QLF) measurements in each bracket group after demineralization

Ergebnisse der QLF(quantitative lichtinduzierte Fluoreszenz)-Messungen in jeder Bracketgruppe nach Demineralisation

	Min	Max	Mean	Median	SD
Bracket group A: stainless steel
ΔF	−21.10	−6.90	−10.37	−9.44	3.61
ΔQ	−17.70	−0.10	−3.16	−1.34	4.22
Bracket group B: titanium
ΔF	−18.60	−6.85	−10.61	−9.70	3.10
ΔQ	−8.66	−0.03	−1.46	−0.61	1.91
Bracket group C: ceramic
Pixels	−17.70	−6.97	−9.49	−8.74	2.50
Pixels × area	−12.20	−0.010	−2.17	−1.05	3.02

ΔF fluorescence loss (%), ΔQ fluorescence loss × area (% × mm²), SD standard deviation, Min minimum, Max maximum