April
May 2008
given time, plaque can mineralize along the gingiva, forming tartar.
the microorganisms that form the biofilm are almost entirely bacteria (mainly streptococcus and anaerobes), with the composition varying by location in the mouth.
streptococcus mutans is the most important bacteria associated with dental caries.
certain bacteria in the mouth live off the remains of foods, especially sugars and starches.
in the absence of oxygen they produce lactic acid, which dissolves the calcium and phosphorus in the enamel.
this process, known as "demineralisation", leads to tooth destruction.
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