Daily probiotic supplementation on plaque pH and gingival health in adults: A clinical study

Oral health is strongly influenced by the balance of the oral microbiome, with plaque pH and gingival status serving as critical indicators of dental and periodontal well-being. A randomized, controlled clinical trial was conducted involving 60 healthy adults aged 20–45 years. The probiotic group exhibited a significant increase in plaque pH (from 5.89 ± 0.12 to 6.52 ± 0.10, p < 0.001) and a marked reduction in gingival index scores (from 1.83 ± 0.18 to 0.97 ± 0.15, p < 0.001). The control group showed no significant changes. Daily probiotic intake effectively enhanced plaque pH and gingival health, supporting its role as a preventive adjunct in routine dental care.