3.1. Background Data
Eighty systemically and orally healthy individuals constituted the study population, and all completed the trial. Females comprised the largest proportion of the study population, distributed as 23/40 (58%) in the placebo group and 29/40 (73%) in the probiotic group. The mean age in both the probiotics and placebo groups was 24 years with a range of 19–33 years in the placebo group and 20–30 years in the probiotics group.