B . gingivalis and F. nucleatum probably were related to acute periapical inflammation of deciduous teeth.
牙龈类杆菌、具核 梭 杆菌可能与乳牙根尖周炎的急性症状有关.
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Gingivalis - film bacteriorhodopsin may also be accordance with the conversion of external field and change its color.
菌视紫质的薄膜还能依照外部电场的转换而改变其颜色.
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