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Showing posts with the label what causes cavities

Plaque

Plaque   Plaque is a sticky, colorless film of bacteria, salivary proteins, and food debris that forms on teeth every day. It is the main cause of cavities and gum disease. While it's still in a soft state, you can clean it off with a toothbrush and floss. However, once the plaque has calcified into calculus (commonly known as tartar), only your dentist or dental hygienist will be able to remove it. Plaque forms rapidly after cleaning regardless of your diet, however increased sugar has been shown to speed up the process. Plaque is actually composed of several species of bacteria. Different types of bacteria are associated with different dental conditions (decay, gingivitis, periodontitis, etc.) The types of bacteria most commonly found in plaque are Streptococcus mutans and  Streptococcus sanguis. It's been shown that there are over 160 different types of bacteria in gingivitis (Actinomyces, Fusobacterium, Streptococcus, etc.) Similar bacteria have been identified in peri

Dental Decay (Caries)

Anatomical Background of Cavities Your teeth break the food you eat into pieces that can be readily swallowed and digested. Teeth are alive. The pulp at the heart of each tooth contains blood vessels and nerves that sense heat, cold, pressure, and pain. A hard substance called dentin surrounds the pulp. On the crown (the part of the tooth above the gum), the dentin is covered by a layer of enamel. The root of the tooth lies below the gum and and is covered by a protective layer of a bone-like material called cementum. In health, the gums fit tightly around the teeth; the roots of the teeth fit into sockets in the jaw bone. A shock-absorbing material, periodontal ligament, lines the socket of each tooth and protecting the skull and jawbone from being jarred. Enamel is the hardest material in you body; however, acids produced through bacterial action can erode enamel and lead to decay, If left unchecked, decay will progress through the dentin and into the pulp resulting in pulpa