Skip to main content

Table 1 Comparison of mean plaque scores between baseline, after the preparatory period, and at the 3-month follow-up

From: The effect of brushing with Salvadora persica (miswak) sticks on salivary Streptococcus mutans and plaque levels in children: a clinical trial

Period of sample recruitmentTest group (n = 37) bControl group (n = 43) bP value
Prior to the preparatory period (baseline)1.3 (±0.61)1.53 (±0.75)0.56
After the preparatory period1.67 (±0.62)1.75 (±0.68)0.44
P value**0.04*0.29 
3-month follow-up1.11 (±0.47)1.29 (±0.47)0.478
P value***0.007*0.001* 
  1. bless than the total number, children were absent (N = 14)
  2. *Significant P value < 0.05
  3. ** Compared to the base line “prior to the preparatory period”
  4. *** Compared to “after the preparatory period”