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Table 1 Baseline registration of data

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

   Lingual technique Labial technique P value
   (n= 10) (n= 10)  
Oral hygiene DMFT index (mean ± SD) 2.00 ± 2.16 1.90 ± 2.18 NS
Plaque index (mean ± SD) 0.47 ± 0.18 0.42 ± 0.17 NS
Gingival bleeding index (mean ± SD) 0.18 ± 0.13 0.31 ± 0.21 NS
Salivary flow rate ml/min (mean ± SD) 1.11 ± 0.47 1.06 ± 0.65 NS
Buffering capacity pH (mean ± SD) 5.20 ± 0.79 5.35 ± 0.41 NS
S. mutans Low n (%) 0 (0) 0 (0) NS
Moderate n (%) 7 (70) 5 (50)
High n (%) 3 (30) 5 (50)
Lactobacillus Low n (%) 4 (40) 2 (20) NS
Moderate n (%) 3 (30) 5 (50)
  High n (%) 3 (30) 3 (30)  
  1. Oral hygiene, salivary markers, and distribution of patients according to various levels of S. mutans and Lactobacillus. NS, not significant (Mann-Whitney U and Fisher's exact tests).