Who discovered Streptococcus mutans?
S. mutans was first described by James Kilian Clarke (1886-1950) after he isolated it from a carious lesion, but it was not until 1960s that real interest in this microbe was generated when researchers began studying dental caries (8).
Where do Streptococcus mutans come from?
mutans most likely are derived from other anaerobic bacteria found in the oral cavity, such as Lactobacillus or Leuconostoc. Additionally, the GTF genes in S. mutans display homology with similar genes found in Lactobacillus and Leuconostoc.
How did Streptococcus mutans get its name?
In 1924, J. Clarke isolated an organism from carious lesions and called it Streptococcus mutans, because he thought the oval shaped cells observed were mutant forms of streptococci (1).
What is the difference between Streptococcus mutans and mutans streptococci?
The group of “mutans streptococci” was described as the most important bacteria related to the formation of dental caries. Streptococcus mutans, although naturally present among the human oral microbiota, is the microbial species most strongly associated with carious lesions.
What is the scientific name for Streptococcus mutans?
Streptococcus mutansStreptococcus mutans / Scientific name
Where is Streptococcus mutans found in the body?
mutans adhere to the primary colonizers by cell-to-cell interactions. Subsequent bacterial growth on tooth surface leads to formation of biofilm on the teeth, also called dental plaque [5,7].
Who is most likely to get Streptococcus mutans?
The results showed that females (p = 0.006), children with enamel hypoplasia (p = 0.024), children with low birth weights (p = 0.005), those who consume more sweets (p < 0.001), and those with a higher proportion of visible plaque (p = 0.020 and p = 0.041) were more likely to be colonized by S. mutans.
How does S. mutans attach to teeth?
mutans is an anaerobic bacterium known to produce lactic acid as part of its metabolism. Secondly, there is the ability of S. mutans to bind to tooth surfaces in the presence of sucrose by the formation of water-insoluble glucans, a polysaccharide that aids in binding the bacterium to the tooth.
What bacteria kills Streptococcus mutans?
First, A12 makes hydrogen peroxide, a chemical weapon that kills S. mutans.
What disease is caused by Streptococcus mutans?
Streptococcus mutans, a major pathogen of dental caries, is regarded as a causative agent of infective endocarditis (IE), which mainly occurs in patients with underlying heart disease. However, it remains unknown whether severe dental caries that extend to pulp space represent a possible route of infection.
How is Streptococcus mutans diagnosed?
Streptococcus mutans can be identified by a chalky white spot on the surface of the tooth indicating an area of demineralization of enamel, which is commonly referred to as a carious lesion. A carious lesion is the earliest diagnosis of tooth decay formation.
What disease does S. mutans cause?
Streptococcus mutans, which causes dental caries, splits the sucrose in food and uses one of the sugars to build its capsule, which sticks tightly to the tooth.
Is Streptococcus mutans a facultative anaerobic?
Streptococcus mutans is a gram-positive facultative anaerobic bacterium that belongs to a group of mutans streptococci consisting of S. sobrinus and several other species (Figure 4).
What is the history of Streptococcus mutans?
See other articles in PMC that citethe published article. In 1924, J. Clarke isolated an organism from carious lesions and called it Streptococcus mutans, because he thought the oval shaped cells observed were mutant forms of streptococci (1).
Is Streptococcus mutans Gram positive or negative?
Streptococcus mutans is a gram-positive facultative anaerobic bacterium that belongs to a group of mutans streptococci consisting of S. sobrinus and several other species ( Figure 4 ).
What is Streptococcus mutans in thioglycollate?
Stain of S. mutans in thioglycollate broth culture. Streptococcus mutans is a facultatively anaerobic, gram-positive coccus (round bacterium) commonly found in the human oral cavity and is a significant contributor to tooth decay.