无论是龋病或牙周病,牙菌斑(以下简称菌斑)均是发病的主要因素之一。菌斑是一种稠密、不定形、非钙化的团块,此团由细菌丛及细菌间的胶状基质所构成。菌斑的主要成份是微生物,约占其70～80%。据称牙龈缘上之菌斑,1克中含2.5×10~(11)个细菌。菌斑易粘附于牙齿的咬合面裂沟部、牙的邻接面以及牙颈部等不易洁净处。这些部位易滞留菌斑。 Whether dental caries or periodontal disease, plaque (hereinafter referred to as plaque) are one of the main factors in the pathogenesis. Plaque is a dense, amorphous, noncalcified mass consisting of a cluster of bacteria and a colloidal matrix between the bacteria. The main component of plaque is microorganisms, accounting for about 70 to 80%. Alleged gingival margin of the plaque, 1 gram contains 2.5 × 10 ~ (11) bacteria. Plaque is easy to adhere to the occlusal surface of the teeth fissure Department, the adjacent surface of the teeth and dental neck and other difficult to clean Department. These parts easy to stasis plaque.