ABSTRACT
Objectives The aim of this study is to assess the antibacterial effectiveness of probiotic-experimental-based
mouthwash (MW) against Streptococcus mutans in vitro. Materials and Methods Antimicrobial screening of two active additives (probiotic-zamzam) was tested against
S. mutans using disc diffusion method. A total of three MWs ; (1) an experimental MW base formula,
(2) an experimental MW base formula with the two active additives, and (3) commercial
MW (hexitol), were evaluated against S. mutans by well diffusion method after 24 h and 72 h storage period. The survival profile
of probiotic strain in the experimental MW was determined using colony counting method
as well as the pH changes at three intervals. Statistical analysis was performed using
one-way ANOVA and t-test to compare the inhibition zone diameter. Results: For active additives, probiotic
strain exhibited higher mean inhibition zones values than zamzam water against S. mutans. Regarding the inhibition zones for the three tested MWs, the experimental MW showed
significant increase in the inhibition zone after 72 h, while there was insignificant
change with commercial MW. For probiotic count in MW, there was insignificant change
in bacterial count after 24 h, and significant decrease after 15 days, followed by
insignificant change after 30 days. For the pH values of the experimental MW, a statistically
insignificant change was found after 24 h, significant decrease after 15 days and
insignificant change after 30 days. Conclusions The probiotic-zamzam experimental MW was effective in reducing S. mutans. Zamzam water could be considered as prebiotic ingredient. Therefore, the probiotic-zamzam
MW has a potential therapeutic value.
Key words:
Lactobacillus rhamnosus
- mouthwash - prebiotics - probiotics -
Streptococcus mutans
- zamzam