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Dental plaque, the precursor of periodontal disease, is a complex biofilm consisting mainly of bacteria, but also archaea, protozoa, fungi and viruses. Viruses that specifically infect bacteria—bacteriophages—are most common in the oral cavity. Viral roles in the progression of periodontal disease as of 2017 remains poorly explored. [1]
Aggressive periodontitis is distinguished from the chronic form mainly by the faster rate of progression. Loss of attachment may progress despite good oral hygiene and in the absence of risk factors such as smoking. Aggressive periodontitis may occur in younger persons and there may a genetic aspect, with the trait sometimes running in families ...
In the early stages, periodontitis has very few symptoms, and in many individuals the disease has progressed significantly before they seek treatment. Symptoms may include: Redness or bleeding of gums while brushing teeth , using dental floss or biting into hard food (e.g., apples) (though this may also occur in gingivitis , where there is no ...
Chronic periodontitis is initiated by Gram-negative tooth-associated microbial biofilms that elicit a host response, which results in bone and soft tissue destruction. In response to endotoxin derived from periodontal pathogens, several osteoclast-related mediators target the destruction of alveolar bone and supporting connective tissue such as the periodontal ligament.
There are three stages, according to the way COVID-19 infection can be tackled by pharmacological agents, in which the disease can be classified. [71] Stage I is the early infection phase during which the domination of upper respiratory tract symptoms is present.
Physicians facing the latest surge of Covid-19 cases, driven by the omicron variant, described what they are seeing in their emergency rooms.
The most recent COVID-19 vaccine should offer protection against the XEC variant, Russo says. “The most recent version of the vaccine seems to be reasonably well-matched,” he says.
Periapical periodontitis; Other names: Apical periodontitis, periradicular periodontitis: Periapical dental radiograph showing chronic periapical periodontitis on the root of the left maxillary second premolar. Note large restoration present in the tooth, which will have undergone pulpal necrosis at some point before the development of this lesion.