口腔菌丛
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local oral flora 龈沟菌丛
normal oral flora 正常口腔
oral normal flora 口腔正常菌群
oral cavity flora 口腔菌群
However, once flora imbalance occurs in the periodontal pocket, oral treponema will reproduce rapidly and becomes the main pathogenic bacteria of periodontal disease.
但牙周袋菌群一旦失调，密螺旋体会大肆繁殖并成为牙周疾病的主要致病菌。
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