The deeper the pocket, the greater the risk.
牙周袋越深，危险性就越大。
The pathogenic have more tendency to exist in the deeper periodontal pocket with heavier periodontitis, and which can consolidate more terrible pneumonia.
牙周炎症越重的大鼠深牙周袋内越易定植呼吸道致病菌，且合并的肺感染更为严重。
The pathogenic have more tendency to exist in the deeper periodontal pocket with heavier periodontitis, and which can consolidate more terrible pneumonia.
牙周炎症越重的大鼠深牙周袋内越易定植呼吸道致病菌，且合并的肺感染更为严重。
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