Many studies have revealed correlation between serum or salivary immunoglobulin concentration and the progress of caries. Pathogens residing in the oral cavity can stimulate immune cells to produce cytokines. Antibacterial cellular reaction of T-cells in course of caries is related to the expression of superficial antigens of Streptococcus mutans. Interleukin-1β (IL-1β) – one of the most import...

The survival of pooled plaque bacteria and a mixed suspension of Streptococcus mutans, Streptococcus sanguis, Streptococcus mitis, and Streptococcus saliuarius were tested in three transport media. A new, non-nutritive, reduced transport fluid, RTF, was compared with VMG II and SBL, two recognized transport media. Specimens were stored in several vials of each medium and held at either 10°C or ...

Streptococcus oralis is a member of the normal human oral microbiota, capable of opportunistic pathogenicity; like related oral streptococci, it exhibits appreciable phenotypic and genetic variation. A multilocus sequence typing (MLST) scheme for S. oralis was developed and the resultant data analysed to examine the population structure of the species. Analysis of 113 isolates, confirmed as bel...

The objective of present investigation was to determine antimicrobial activity of Thymus vulgaris oil on some oral pathogens. Thymus vulgaris oil was prepared by hydrodistillation and tested against 30 clinical isolates of each of Streptococcus pyogenes, Streptococcus mutans, Candida albicans, Porphyromonas gingivalis, and Aggregatibacter actinomycetemcomitans, prepared from related oral infect...

Propolis has traditionally been used in curing infections and healing wounds and burns. Current researches have shown that propolis has antibacterial, antifungal and antiviral actions however, the pharmacological activity of propolis is highly variable depending on its geographic origin. There have been few studies on the effects of Iranian propolis on the oral microorganisms. In this in-vitro ...

UNLABELLED Propolis, a natural antibiotic, is a resinous substance that honey bees (Apis mellifera) produce. The main chemical classes present in propolis are flavonoids, phenolics and other various aromatic compounds. AIM To evaluate the antibacterial action of propolis on the concentration of Streptococcus mutans colonizing the oral cavity of children. MATERIALS AND METHODS Thirty childre...

Recently, it has been reported that eriC and crcB are involved in bacterial fluoride resistance. However, the fluoride-resistance mechanism in oral streptococci remains unclear. BLAST studies showed that two types of eriCs (eriC1 and eriC2) and two types of crcBs (crcB1 and crcB2) are present across 18 oral streptococci, which were identified in ≥ 10% of 166 orally healthy subjects with ≥ 0.01%...

Streptococcus mutans present in a man on a world wide basis (Birgitta Kohler & Douglas Bratthall 1976). High numbers in the mouth of Streptococcus mutans are associated with both high prevalence and a high incidence of dental caries. The Directorate of Oral Health Ministry of Health Republic of Indonesia declared 60 80 percent of school children between 4 14 years by age were suffering from den...

Oral Campylobacter species are rarely reported to cause extraoral infections. Here we present three cases of extraoral abscess caused by an oral Campylobacter sp. and a Streptococcus sp. The Campylobacter species were all isolated anaerobically and identified by sequencing analysis of the 16S rRNA gene. The cases included a breast abscess caused by Campylobacter rectus and a non-group A beta-he...

objective: punica granatum has been used for many years in folk medicine due to several purposes. the aim of the present study was to evaluate the effect of methanolic extract of punica granatum peel (mepgp) against streptococcus mutans, staphylococcus aureus, streptococcus salivarius, streptococcus sanguinis, staphylococcus epidermidis, actynomyces viscosus, lactobacillus acidophilus and candi...