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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Results Two weeks after treatment, gingival index(GI) of nano silver tourmaline composite group was decreased significantly( P <0.01), but the periodontal pocket depth didn't have any change.
Methods 42 ITIR implants were included in this study. The changes of subgingival microbion and the clinical periodontalindex after implanting were detected.