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【多选题】
关于釉质形成的叙述哪项正确A.
牙本质形成后，内釉上皮分化为具有分泌作用的成釉细胞
B.
釉质基质分泌后立即达到部分矿化，矿化程度大30%
C.
釉质进一步矿化，晶体体积增大，数量增多
D.
在矿物质沉积的同时，蛋白质逐渐被吸收
E.
每根釉柱由四个成釉细胞参与形成
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