RESUMO
Background: Probiotics consist of live microbes. They do not have any adverse effects on health. They provide nutritive benefits to individuals when ingested in adequate quantities. The most common oral infections of the oral cavity are those affecting the periodontal and dental tissues. Aims and Objectives: 1) To evaluate the antimicrobial role of oral probiotics against microorganisms involved in infections of periodontal and dental tissues. 2) To evaluate the state of health of gingival and periodontal tissues of children undergoing chemotherapy after the use of oral probiotics. Materials and Methods: 60 children, between the age group of 3 and 15 years, undergoing chemotherapy were randomly distributed under control and probiotics administered test group for 90 days. The gingival, periodontal, and oral hygiene statuses were evaluated along with their caries activity test. The parameters were measured at 0, 15, 30, 45, 60, 75, and 90 days intervals. Statistical analysis was performed using Statistical Package for the Social Sciences version 18.0. Results: The oral probiotics consumption significantly reduced the plaque accumulation between days of observation among those in the treatment group (P < 0.05). There was a significant improvement in the gingival and periodontal status in the tested group (P < 0.05). Snyder test was conducted to assess caries activity. Score 1 was found in 10 children, score 2 in eight children. Score 3 was not found in any child under the study group. Conclusion: The results show that the regular consumption of oral probiotics significantly reduces plaque accumulation, calculus formation, and caries activity among the test group.