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Table 3 Intragroup differences in the distribution of patients according to various levels of S. mutans and Lactobacillus

From: Changes in the oral environment after placement of lingual and labial orthodontic appliances

  S. mutans Lactobacillus
   Low n(%) Moderate n(%) High n(%) Low n(%) Moderate n(%) High n(%)
Lingual technique (n = 10) T 0 0 (0) 7 (70) 3 (30) 4 (40) 3 (30) 3 (30)
T 1 0 (0) 2 (20) 8 (80) 2 (20) 2 (20) 6 (60)
T 2 0 (0) 1 (10) 9 (90) 2 (20) 2 (20) 6 (60)
T 0-T 1 NS NS NS NS NS NS
T 1-T 2 NS NS NS NS NS NS
T 0-T 2 * * * NS NS NS
Labial technique (n = 10) T 0 0 (0) 5 (50) 5 (50) 2 (20) 5 (50) 3 (30)
T 1 0 (0) 2 (20) 8 (80) 3 (30) 4 (40) 3 (30)
T 2 0 (0) 2 (20) 8 (80) 1 (10) 5 (50) 4 (40)
T 0-T 1 NS NS NS NS NS NS
T 1-T 2 NS NS NS NS NS NS
  T 0-T 2 NS NS NS NS NS NS
  1. NS, not significant. *p < 0.05 (McNemar test).