Objective To investigate the gingival recession of adults after rapid maxillary expansion.

目的探讨上颌快速扩弓对成人牙龈退缩的影响.

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It was referred to possible breastfeeding difficulties, speech problem, malocclusion and gingival recession.

它可能造成母亲哺乳困难 、 孩说话不清楚 、 正咬合、龈萎缩.

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Because oral bacteria multiply, bad breath can occur, dental caries, and gingival recession.

由于口腔内细菌大量繁殖, 可以出现口臭 、 龋齿, 以及牙龈萎缩.

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