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Table 4 Association of microbial occurrence in different groups with phase I and II decontamination

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

Groups Absent, n (%) Present, n (%) P value
Phase I decontamination    
 Group 1  10 (76.9)  3 (23.1) 0.22
 Group 2  7 (100)  0
 Group 3  16 (94.1)  1 (5.9)
 Group 4  18 (75)  6 (25)
Phase II decontamination  
 Group 1  3 (100)  0
 Group 3  1 (100)  0
 Group 4  6 (100)  0
  1. Group 1, American Orthodontics brackets; Group 2, 3M Unitek; Group 3, Ortho Organizers; Group 4, China Dental Orthodontic Brackets