·2,447,543篇论文数据，部分数据来源于NoteExpress
Most food impaction happened in the interproximal of molars. The impaction types were mainly hybrid and vertical impaction, and only 9.7% was horizontal impaction.
嵌塞部位以磨牙间隙为主，嵌塞类型以混合型和垂直型嵌塞为主，水平型所占比例为9.7%。
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