Evaluation of Changes in Cariogenic Bacteria in a Young Moroccan Population with Fixed Orthodontic Appliances

Table 1

Frequency of analyzed bacteria in dental plaque during three phases: before the placement of fixed appliances (T0), one month after the placement of fixed appliances (T1), and three months after the placement of fixed appliances (T2).

Bacteria	T0	T1	T2	-value
	N (%)	N (%)	N (%)	T0 vs T1	T1 vs T2	T0 vs T2
Streptococcus sobrinus	7 (38.9)	9 (50)	14 (77.8)	0.5	0.125	0.016
Streptococcus oralis	2 (11.1)	2 (11.1)	3 (16.7)	1	1	1
Streptococcus sanguinis	2 (11.1)	3 (16.7)	6 (33.3)	1	0.375	0.219
Streptococcus mitis	2 (11.1)	3 (16.7)	10 (55.6)	1	0.065	0.021
Streptococcus salivarius	3 (16.7)	3 (16.7)	3 (16.7)	1	1	1
Lactobacillus	2 (11.1)	6 (33.3)	8 (44.4)	1	0.63	0.031
Klebsiella pneumoniae	0	0	2 (11.1)	—	—	—
Enterobacter cloacae	0	0	3 (16.7)	—	—	—

compared to T0.