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Table 3 Organisms isolated from the different groups

From: In vitro evaluation of microbial contamination and the disinfecting efficacy of chlorhexidine on orthodontic brackets

Organisms Group 1, n (%) Group 2, n (%) Group 3, n (%) Group 4, n (%)
Staphylococcus aureus 1 (7.69) 5 (29.41) 3 (12.5)
S. epidermidis 3 (23.08) 2 (28.57) 7 (41.18) 5 (20.83)
Lactobacilli 1 (7.69) 1 (5.88) 3 (12.5)
Klebsiella pneumoniae 3 (23.08) 1 (5.88) 7 (29.17)
Bacillus licheniformis 2 (15.38) 2 (11.76) 3 (12.5)
B. cereus 3 (23.08) 1 (14.29) 1 (5.88) 3 (12.5)
Non-pathogenic bacteria 4 (57.14)
  1. Group 1, American Orthodontics brackets; Group 2, 3M Unitek; Group 3, Ortho Organizers; Group 4, China Dental Orthodontic Brackets