内层龋则轻度脱矿，未见溶解的胶原纤维，也无微生物，其下有钙化透明层。
The demineralization was less and no collagen fibers and bacteria were found in the inner layer. A transparent layer with calcification was found under it.
内层龋则轻度脱矿，未见溶解的胶原纤维，也无微生物，其下有钙化透明层。
The demineralization was less and no collagen fibers and bacteria were found in the inner layer. A transparent layer with calcification...
内层龋则轻度脱矿，未见溶解的胶原纤维，也无微生物，其下有钙化透明层。
The demineralization was less and no collagen fibers and bacteria were found in the inner layer. A transparent layer with calcific…
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