Skip to main content

Advertisement

Table 2 Plaque and gingival indices and testing with t test

From: Salivary levels of cariogenic bacterial species during orthodontic treatment with thermoplastic aligners or fixed appliances: a prospective cohort study

Outcome Aligner Bracket P*
  Mean (SD) Mean (SD)  
s-PlI T0 (transformed)
 T0 5.34 (0.87) 5.55 (1.08) 0.56
 T1 3.97 (1.29) 5.72 (1.24) 0.001
 T2 4.80 (1.48) 6.15 (1.79) 0.03
s-GI T0 (transformed)
 T0 4.35 (0.82) 5.77 (1.56) 0.004
 T1 4.23 (1.29) 5.71 (1.80) 0.01
 T2 5.03 (1.66) 5.81 (1.69) 0.21
  1. *P value for differences between experimental groups (aligner versus bracket) from t test
  2. SD standard deviation, s-GI simplified gingival index, s-PlI simplified plaque index