The epithelial cells of the follicular medulla differentiated into the reticular epithelial cells, the marginal layer and the core cells.

滤泡髓质区上皮分化为网状上皮，边缘层和芯细胞。

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There were thin gaps or voids in the hybrid layer between the flowable composite resin and the enamel probably leading to marginal leakage and the adsorption of the germs.

封闭剂与牙釉质的粘接面内存在微小孔隙，不排除边缘微渗漏及致龋菌吸附的可能。

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There were thin gaps or voids in the hybrid layer between the flowable composite resin and the enamel probably leading to marginal leakage and the adsorption of the germs.

封闭剂与牙釉质的粘接面内存在微小孔隙，不排除边缘微渗漏及致龋菌吸附的可能。

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