Table 1.

Full mouth plaque index (FMPI) and full mouth bleeding on probing (FMBOP) before and after orthodontic treatment

Parameter	[%]	Time of observation [months]		Difference between baseline and 12 months post-op	p-value (Friedman ANOVA)	Mean diff. (95% Cl) between baseline and 12 months post-op
FMPI	x ± SD	Baseline	17.33 ± 2.11	−0.35%	p = 0.28	0.86 (−1.29, 0.43)
		3	19.28 ± 2.52
		6	20.13 ± 2.11
		9	19.37 ± 2.17
		12	16.90 ± 2.25
FMBOP	x ± SD	Baseline	13.44 ± 1.87	−0.20%	p = 0.30	0.43 (−0.63, 0.23)
		3	15.07 ± 1.78
		6	17.15 ± 1.80
		9	15.79 ± 1.75
		12	13.24 ± 1.75

x ± SD mean values and standard deviation

Mean diff. mean difference

Cl Confidence interval