Table 3

Means ± DS of the CFU/mL of the main species detected at T0, T1 and T2, respectively.

Species*

T0

T1

Z

P**

T0

T2

Z

P**

Staph.aureus stock a

28,23 (± 53,96)

5,48 (± 5,10)

-3,455

0,0005

28,23 (± 53,96)

3,07 (± 6,08)

-4,512

0,0001

Staph.aureus stock b

5,23 (± 9,13)

3,46 (± 3,30)

-0,105

0,916

5,23 (± 9,13)

2 (± 4,88)

-2,521

0,011

Candida

5,95 (± 5,20)

1,8 (± 1,00)

-3,267

0,0011

5,95 (± 5,20)

2,25 (± 3,04)

-1,792

0,07

*For Branhamella catarrhalis, Neisseria meningitidis, Klebsiella pneumoniae, Haemophilus, Diplococcus pneumoniae and Streptococcus pyogenes

CFU/mL values were found in little number of patients and quantity, not adequate for statistical analysis.

**by means of Wilcoxon Signed Rank Test.

Cazzolla et al. BMC Oral Health 2006 6:2   doi:10.1186/1472-6831-6-2