Comparative evaluation of change in the pH and streptococcus mutans count in dental plaque after use of probiotic curd – an in vivo microbiological study

Abstract

Background: Numerous studies have demonstrated the decline in Streptococcus mutans level following consumption of Probiotic. However, most of them have tested the salivary levels of microbes. Aim: The aim of present study was to assess the effect of probiotic curd on pH and colony count of Streptococcus Mutans in dental plaque. Subjects and methods: This randomized control trial was conducted on 20 healthy children of 6-12 years of age. The subjects were randomly divided into group 1- probiotic group, who consumed probiotic yogurt for 15 days and group 2 – control group without any additional supplement. The pH and colony count of Streptococcus mutans in dental plaque was recorded at baseline and after the intervention period of 15 days. Results: The drastic decline in the Streptococcus mutans level as well as drop in pH of plaque was noticed among the study group whereas no significant difference was seen in the control group. Conclusion: Even a short-term consumption of probiotics has detrimental effect on caries producing organism. Thus, it can be used as a preventive measure to control dental caries with added advantage on the general health.