background and aims: one of the most common chronic diseases in the world is tooth decay. a variety of bacteria are involved in this disorder of which streptococcus mutants is the most common. essential oils are considered as new natural compounds for use in combating drug-resistant bacteria. this study was aimed to evaluate the antibacterial activity of some essential oils prepared from eucaly...

Cover photo: Mutans streptococci on mitis salivarius bacitracin agar (MSB). To the left, colony representing Streptococcus sobrinus. In the middle and to the right, colonies representing Streptococcus mutans.

Intracellular polysaccharides (IPS) are glycogen-like storage polymers which contribute significantly to Streptococcus mutans-induced cariogenesis. We previously identified and cloned a locus from the S. mutans chromosome which is required for the accumulation of IPS. Sequencing of this locus revealed at least four contiguous open reading frames, all of which are preceded by a common promoter r...

background and aims. streptococcus mutans is the main pathogenic agent involved in dental caries, and may be eliminated using mouthwashes. the objective of this study was to compare the effects of fluoride, chlorhexidine, and fluoride-chlorhexidine mouthwashes on salivary s. mutans count after two weeks of use and determine the prevalence of their side effects on the oral mucosa. materials and ...

AIMS The aim of this study was to estimate the count of Streptococcus mutans in saliva of caries free children using Dentocult SM strip mutans and to evaluate the effect of fluoride varnish on the Streptococcus mutans count in saliva of these caries free children. METHODS AND MATERIAL Thirty caries free children were selected for the study based on the information obtained from a questionnair...

Prebiotics are indigestible dietary supplements. Their function is to increase the growth andactivity of beneficial organisms (probiotics) while inhibiting and activity potentiallyharmful bacteria. The present study evaluated effectiveness inulin in enhancing growthof Lactobacillus sp. shows antimicrobial against Streptococcus mutans a dental cariescausing microorganism. Growth pattern was obse...

The production of bacteriocin-like inhibitory substances, mutacins, by mutans streptococci varies among isolates. To find if the degree of mutacin activity of an isolate was related to its transmission between mother and her child, 19 mothers and their 18-month- to 3-year-old children were sampled for their oral mutans streptococci. In addition, the stability of mutacin activity was studied wit...

The purpose of this study was to investigate the antimicrobial properties of a conventionalpoly methyl methacrylate (PMMA) modified with hydrothermally synthesised titaniumdioxide nanotubes (TNTs). Minimum inhibitory concentration (MIC), minimum bactericidalconcentration (MBC), and minimum fungicidal concentrations (MFC) for planktonic cellsof the TiO2 nanotubes solution against Lactobacillus a...