结论：硬化牙本质相对于正常牙本质形成的混合层较薄或者没有，树脂突短、少。
Conclusion: the resin rags were fewer and shorter and the hybrid layers were thinner in sclerotic dentin than in normal dentin.
全酸蚀粘结系统与自酸蚀粘结系统作用同类型的牙本质上，自酸蚀比全酸蚀形成的混合层薄，树脂突短。
When bonding the same type dentin substrate, the resin rags were shorter and the hybrid layer thinner in used self-etching adhesive than total-etching adhesive.
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