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Tooth decay is the destruction of the enamel (outer surface) of a tooth. Tooth decay is also known as dental cavities or dental caries. Decay is caused by bacteria that collect on tooth enamel. The bacteria live in a sticky, white film called plaque (pronounced PLAK). Bacteria obtain their food from sugar and starch in a person's diet. When they eat those foods, the bacteria create an acid that attacks tooth enamel and causes decay. The acids that cause tooth demineralization (cavity formation) are produced by specific types of bacteria (mutans streptococci and lactobacilli) that live in dental plaque. These bacteria are living organisms just like we are. When we consume foods and beverages, we create waste products. Bacteria do the same thing. The bacteria that cause tooth decay utilize sugars (glucose, sucrose, fructose, lactose, or cooked starches) as their food source. The waste products created from digesting these sugars are the acids (especially lactic acid) that cause the demineralization of tooth enamel and dentin. Since the bacteria that live in our mouth eat when we do, as we ingest foods which contain sugars (such as soda, candy, milk, and even fruits and vegetables) these bacteria get a meal too. And within minutes they start producing the acids that cause tooth decay. Bacteria that are exposed to sugars or carbohydrates can make acid, which attacks the crystal-like substance in the tooth's outer surface. This process is known as demineralization. The first sign of this is a chalky white spot. Acid formation, and hence tooth demineralization, begins within minutes of the bacteria receiving a sugary meal. It can take up to several hours for saliva to penetrate the layer of dental plaque and neutralize these acids. At this stage, the decay process can be reversed. Using fluorides at home and in the dental office can help the tooth repair itself. If not treated appropriately the demineralization continues. Enamel starts to break down. Once the enamel surface is broken, the tooth can no longer repair itself. The cavity has to be cleaned and restored by a dentist. If decay is left untreated, it will reach the tooth's pulp, which contains nerves and blood vessels. The pulp becomes infected. An abscess (swelling) or a fistula (opening to the surface of the gum) can form in the soft tissues. Cavity prevention suggestion: Brush and floss after every meal or snack. Take the time to be thorough with your brushing and flossing. Those places that you don't clean effectively are precisely the locations where cavities will be most likely to form. Factor in the formation of tooth decay. Tooth decay is a common problem and proper brushing and flossing and regular dental check up is the best way to prevent this from happening in the first place. Ask from medical experts at about how to stop tooth decay in men and women.
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