What does Streptococcus Sobrinus cause?

What does Streptococcus Sobrinus cause?

sobrinus and other microorganisms to sustain a stable community in the form of dental plaque. S. sobrinus in turn releases lactic acid in the anaerobic metabolism of glucose. Lactic acid demineralizes tooth enamel and fosters the initiation of dental caries.

Where is Streptococcus Sobrinus found?

sobrinus in particular lives in the tooth cavities of humans. Streptococcus was first discovered and isolated by the French biologist Louis Pasteur in 1887 when a few other human pathogens were discovered at the same time and treated to better the health of the general public.

What disease does Streptococcus mutans and S Sobrinus cause?

S. mutans and Streptococcus sobrinus have a central role in the etiology of dental caries [1,13], because these can adhere to the enamel salivary pellicle and to other plaque bacteria [6].

What is cariogenic streptococci?

Cariogenic potential. The causative agent of dental caries is associated with its ability to metabolize various sugars, form a robust biofilm, produce an abundant amount of lactic acid, and thrive in the acid environment it generates.

Why is Streptococcus mutans more cariogenic?

S. mutans is the major microbial etiological agent of dental caries, due to its ability to adhere to the tooth surface, by producing sticky extracellular polysaccharides from sucrose, and to ferment sucrose and other sugars to acids which attack the tooth enamel [5, 6].

What can a cavity lead to?

If cavities aren’t treated, they get larger and affect deeper layers of your teeth. They can lead to a severe toothache, infection and tooth loss. Regular dental visits and good brushing and flossing habits are your best protection against cavities and tooth decay.

What does Streptococcus mutans eat?

… disease in which bacteria, primarily Streptococcus mutans, in the dental plaque metabolize simple sugars and other fermentable carbohydrates into acids that dissolve tooth enamel.

Is Streptococcus mutans harmful or helpful?

Streptococcus mutans is a bacteria that naturally forms in your mouth and can build up on the surfaces of teeth at any age – from infancy before baby teeth erupt and even in adults who have had their permanent teeth for decades. This bacteria can be harmful, as it is the main contributor to tooth decay and cavities.

What is cariogenic food?

Cariogenic foods are those that produce or promote the development of tooth decay. Cariogenic Food Cans Promote Development of Tooth Decay. All fermentable carbohydrates, including sugars, contribute to the development of tooth decay.

What are cariogenic sugars?

Sugar is the principal cause of the most common disease in industrialised countries, dental caries. The sugars implicated in dental caries, in decreasing order of cariogenicity, are sucrose, glucose, and fructose; brown sugars are as cariogenic as white.

What foods cause dental caries?

Here are some of the worst foods for your teeth:

• Sugary Sweets and Candies. If you need to have sweets, eat those that quickly dissolve in your mouth.
• Soft Drinks. Soft drinks, whether sugar-free or not, contain acid.
• Pickles.
• Wine.
• Citrus Fruits.
• Crackers.
• Sports Beverages.
• Sugar.

What is Streptococcus mitis and what does it do?

Streptococcus mitis are commensal bacteria that colonize hard surfaces in the oral cavity such as dental hard tissues as well as mucous membranes and are part of the oral flora.

Is there genetic exchange between Streptococcus pneumoniae and S mitis?

As genetic exchange is known to occur between S. mitis and Streptococcus pneumoniae, this finding may have implications for the development of vaccines or therapies for pneumococcal disease that are based on pneumolysin and its properties (11).

Does the V(AP) of Streptococcus mutans vary with pH?

However, the V (ap) of some strains of S. mitis biovar 1 and S. oralis, particularly at pH values of 7.0 and 6.0, exceeded that of some strains of S. mutans. The V (ap) decreased with pH for all strains, but some strains of S. mitis biovar 1 and strains of the mutans streptococci maintained a relatively high rate of acid production.

What is the GC and at content of Saccharomyces mitis?

The genome of S. mitis has been sequenced and consists of a circular chromosome with about two million bp that varies with different strains. Its GC and AT content are respectively 40.4% and 59.1%. There are a total of 2222 genes of which 2149 are protein coding genes (3).