The bourn of internal root sheath and external root sheath was blurry, the fiber of connective tissue sheath cell arrayed disordered, the number of connective tissue cell reduced.

  • 内根鞘、外根鞘界限模糊,结缔组织性鞘细胞纤维排列杂乱,结缔组织细胞减少。

  • 互联网摘选 2025-01-20 11:38:26

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