Skip to main content

Advertisement

Table 3 Main results of periodontal indices

From: Comparison between rapid and slow palatal expansion: evaluation of selected periodontal indices

  Group I Group II Difference between the 2 groups at T1 Difference between the 2 groups at T2
  T0 T1 Differences between T0 and T1 T2 T0 T1 Differences between T0 and T1 T2   
PI 0 0.9 t:9; p < 0.001 0.5 0 0.7 t:7; p < 0.001 0.5 NS NS
PBI 0 0.9 t:9; p < 0.001 0.3 0 0.7 t:7; p < 0.001 0.3 NS NS
PPD 1.6 2.5 2.9 t:2.6; p < 0.05 2.9 2.4 2.4 NS 2.9 NS NS
PPD 2.6 2.5 2.9 t:2.6; p < 0.05 3 2.5 2.4 NS 2.8 NS NS
  1. PI: plaque index (Silness e Loe) [16][13].
  2. PBI: papillary bleeding index (Saxer e Muhlemann) [17][14].
  3. PPD: probing pocket depth (mm).
  4. T0: 7 days after the periodontal prophylaxis (at the beginning of the active orthodontic therapy).
  5. T1: after 20 days of active therapy.
  6. T2: after 5 months of retention therapy.