what are dental caries ? how are they caused ?
Answers
Answer:
Dental caries (tooth decay) is a major oral health problem in most industrialised countries, affecting 60–90% of schoolchildren and the vast majority of adults.
Explanation:
The early manifestation of the caries process is a small patch of demineralised (softened) enamel at the tooth surface, often hidden from sight in the fissures (grooves) of teeth or in between the teeth. The destruction spreads into the softer, sensitive part of the tooth beneath the enamel (dentine). The weakened enamel then collapses to form a cavity and the tooth is progressively destroyed. Caries can also attack the roots of teeth should they become exposed by gum recession. This is more common in older adults.
Dental caries is caused by the action of acids on the enamel surface. The acid is produced when sugars (mainly sucrose) in foods or drinks react with bacteria present in the dental biofilm (plaque) on the tooth surface. The acid produced leads to a loss of calcium and phosphate from the enamel; this process is called demineralisation.
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Dental Caries
Dental caries means corroding of tooth enamel. when we eat some sugary substance the bacteria present in our mouth starts regarding the tooth enamel. This makes our mouth medium acidic. This causes a formation of layer on teeth known as plaque. So, saliva cannot reach the surface to neutralize acid.
It can be cured by brushing teeth daily. It helps us to remove plaque.
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