观察用乳膏前后临床症状和菌斑指数、牙龈指数、龈沟出血指数的变化。

The changes of clinical sign, plaque index, gingival index and sulcus bleeding index were observed before and after using yahao.

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治疗前后检查患者的牙龈指数(GI)，菌斑指数(PLI)和龈沟出血指数(SBI)。

Gingival index (gi), plaque index (PLI) and sulcus bleeding index (SBI) were measured before and after treatment.

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用药前后检查牙龈炎指数(GI)、牙龈出血指数(SBI)、菌斑指数(PLI)作为观察指标。

The gingival index (gi). Sulcus bleeding index (SBI) and dental plague index (PLI) were record after or before using. Results: The gi.

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结果四种牙膏均可使QH菌斑指数、出血指数和阿米巴感染度下降（P<0.05），而探诊深度、附着水平和牙松动度无统计学差异（P>0.05）。

Results The four toothpastes reduced the QH, SBI and AID(P<0.05), but there was no significant difference between in AL, PD and OD(P>0.05)among the groups.

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结果四种牙膏均可使QH菌斑指数、出血指数和阿米巴感染度下降（P<0.05），而探诊深度、附着水平和牙松动度无统计学差异（P>0.05）。

Results The four toothpastes reduced the QH, SBI and AID(P<0.05), but there was no significant difference between in AL, PD and OD(P>0.05)among the groups.

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