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Table 2 Description of visual scores among subjects of three groups at various time intervals of observation

From: Effects of various remineralizing agents on the outcome of post-orthodontic white spot lesions (WSLs): a clinical trial

Groups Time intervals Visual scores mean ± SD Significance (P value) Comparison between various time intervals of observation (intra-group)
Comparison P value
Group I T 0 15.71 ± 7.94 0.078 NS T 0T 1 1.000 NS
T 1 12.14 ± 8.41 T 0T 2 0.582 NS
T 2 10.57 ± 8.18 T 0T 3 0.067 NS
T 3 07.71 ± 7.66 T 1T 2 1.000 NS
   T 1T 3 0.910 NS
T 2T 3 1.000 NS
Group II T 0 12.31 ± 6.45 0.012* T 0T 1 0.676 NS
T 1 08.85 ± 6.22 T 0T 2 0.169 NS
T 2 07.46 ± 5.47 T 0T 3 0.008**
T 3 05.00 ± 3.03 T 1T 2 1.000 NS
   T 1T 3 0.473 NS
T 2T 3 1.000 NS
Group III T 0 15.50 ± 12.45 0.008** T 0T 1 1.000 NS
T 1 12.28 ± 6.83 T 0T 2 0.035*
T 2 06.85 ± 4.91 T 0T 3 0.018*
T 3 06.14 ± 5.24 T 1T 2 0.462 NS
   T 1T 3 0.277 NS
T 2T 3 1.000 NS
  1. T 0 prior to application of remineralizing agents, T 1 1 month after the use of remineralizing agents, T 2 3 months after the use of remineralizing agents, T 3 6 months after the use of remineralizing agents, NS non-significant
  2. *P < 0.05; **P < 0.01