The utility model has excellent clean effect to the side-gingival crevice of teeth end specially.

特别是对尽头牙边缝有极好的刷净效果。

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Abstract : Abstract: Neutrophils in gingival crevice are the first line against invading periodontal pathogens.

摘要 [摘要]龈沟内的中性粒细胞是抵御牙周致病菌入侵的第一道防线。

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Abstract : Abstract: Neutrophils in gingival crevice are the first line against invading periodontal pathogens.

摘要 [摘要]龈沟内的中性粒细胞是抵御牙周致病菌入侵的第一道防线。

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