少量炎症细胞主要为淋巴细胞和单核细胞。结论：釉质龋时牙髓可以出现损伤性变化，且与龋损活动性相关。
CONCLUSION: Injury to dental pulp can take place in enamel caries stage, and it is associated with caries activity.
少量炎症细胞主要为淋巴细胞和单核细胞。结论：釉质龋时牙髓可以出现损伤性变化，且与龋损活动性相关。
CONCLUSION: Injury to dental pulp can take place in enamel caries stage, and it is associated with caries activity.
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