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materia medica 〔m∂t´i∂ri∂-m´edik∂〕 (집합적) 약물, 약종; (단수 취급) 약물학

[위키] 본초강목 Compendium of Materia Medica

dental plaque : a soft, thin film of food debris, mucin, and dead epithelial cells deposited
on the teeth, providing the medium for the growth of various bacteria. The main
inorganic components are calcium and phosphorus with small amounts of magnesium,
potassium, and sodium; the organic matrix consists of polysaccharides, proteins,
carbohydrates, lipids, and other components. Plaque plays an important etiologic role in
the development of dental caries and periodontal and gingival diseases and provides the
base for the development of materia alba; calcified plaque forms dental calculus.


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