结论：龈沟液中AST的活性可以在一定程度上反映上颌快速扩弓牙周组织的改建。
Conclusion: The results suggest that AST activities in GCF reflect the tissues remodeling which occurs in the periodontium to some degree during rapid palatal expansion.
近40年来，学者们对快速上颌扩弓进行了大量的临床和基础研究。
During recent 40 years, many clinical and basic researches have been done on RME.
近40年来，学者们对快速上颌扩弓进行了大量的临床和基础研究。
During recent 40 years, many clinical and basic researches have been done on RME.
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