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Table 2 Longitudinal changes in salivary pH values for each group from T0 to T3

From: Salivary pH changes under the effect of stainless steel versus elastomeric ligatures in fixed orthodontic patients: a single-center, randomized controlled clinical trial

pH value at

T0

T1

T2

T3

p value

Ligature

Mean

SD

Mean

SD

Mean

SD

Mean

SD

T0-T1

T0-T2

T0-T3

Stainless Steel

6.72

0.14

6.72

0.14

6.78

0.13

6.81

0.14

0.81NS

0.00*

0.00*

Elastomeric

6.77

0.16

6.72

0.13

6.67

0.13

6.64

0.13

0.00*

0.00*

0.00*

  1. T0 baseline, T1 2 weeks, T2 6 weeks and T3, 12 weeks from T0, NS indicates nonsignificant
  2. *Significant p value < 0.05
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