Black licorice looks innocent enough.
Black licorice looks innocent enough.
For older adults, dry mouth can be a common side effect of prescribed medications. Having dry mouth means you don't have enough saliva, or spit, to keep your mouth wet. The condition can lead to problems chewing, eating, ...
A federal appeals court on Tuesday blocked a San Francisco law requiring a health warning on soda ads, saying the measure was misleading and would suppress free speech.
A study of 347 children in Plymouth aged between four and six years has shown that social deprivation is an indicator of increased risk of dental decay in children. However, obesity was not associated with decay in this group ...
Researchers at Queen's University Belfast have discovered that aspirin could reverse the effects of tooth decay resulting in a reduction in the need for fillings. Currently about 7 million fillings are provided by the NHS ...
(HealthDay)—Do you feel a sharp pain when you eat or drink something cold or hot? You may have sensitive teeth, a common problem caused by a number of factors.
Though most tooth decay can be blamed on bacteria, such as Streptococcus mutans, the fungus Candida albicans may be a joint culprit in an alarmingly common form of severe tooth decay affecting toddlers known as early childhood ...
A natural compound found in grape seed extract could be used to strengthen dentin—the tissue beneath a tooth's enamel—and increase the life of resin fillings, according to new research at the University of Illinois at ...
People who have a severe fear of the dentist are more likely to have tooth decay or missing teeth, according to a new study from King's College London.
Applying fluoride varnish to children's teeth is just as effective at preventing tooth decay as the alternative method of sealing teeth and could save the NHS money, concludes a study led by Cardiff University.
Dental caries, also known as tooth decay or cavity, is a disease where bacterial processes damage hard tooth structure (enamel, dentin and cementum). These tissues progressively break down, producing dental cavities (holes in the teeth). Two groups of bacteria are responsible for initiating caries, Streptococcus mutans and Lactobacilli. If left untreated, the disease can lead to pain, tooth loss, infection, and, in severe cases, death. Today, caries remains one of the most common diseases throughout the world. Cariology is the study of dental caries.
The presentation of caries is highly variable; however, the risk factors and stages of development are similar. Initially, it may appear as a small chalky area which may eventually develop into a large cavitation. Sometimes caries may be directly visible, however other methods of detection such as radiographs are used for less visible areas of teeth and to judge the extent of destruction.
Tooth decay is caused by specific types of acid-producing bacteria which cause damage in the presence of fermentable carbohydrates such as sucrose, fructose, and glucose. The mineral content of teeth is sensitive to increases in acidity from the production of lactic acid. Specifically, a tooth (which is primarily mineral in content) is in a constant state of back-and-forth demineralization and remineralization between the tooth and surrounding saliva. When the pH at the surface of the tooth drops below 5.5, demineralization proceeds faster than remineralization (i.e. there is a net loss of mineral structure on the tooth's surface). This results in the ensuing decay. Depending on the extent of tooth destruction, various treatments can be used to restore teeth to proper form, function, and aesthetics, but there is no known method to regenerate large amounts of tooth structure. Instead, dental health organizations advocate preventive and prophylactic measures, such as regular oral hygiene and dietary modifications, to avoid dental caries.
Though more than 95% of trapped food is left packed between teeth after every meal or snack, over 80% of cavities develop inside pits and fissures in grooves on chewing surfaces where the brush cannot reach and there is no access for saliva and fluoride to neutralise acid and remineralise demineralised tooth. Few cavities occur where saliva has easy access.
Chewing fibre like celery after eating helps force saliva into trapped food to dilute carbohydrate like sugar, neutralise acid and remineralise demineralised teeth.
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