Objective: To study the relationship between nitric oxide (NO) levels in saliva of patients with periodontal disease and clinical periodontal disease index.
目的：研究牙周病患者唾液一氧化氮(NO)的含量与牙周病各临床指标的关系。
Objective: To study the relationship between nitric oxide (NO) levels in saliva of patients with periodontal disease and clinical periodontal disease index.
目的：研究牙周病患者唾液一氧化氮(NO)的含量与牙周病各临床指标的关系。
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