含牙囊肿又称滤泡囊肿。发生于牙冠或牙根形成之后，在缩余釉上皮与牙冠之间出现液体渗出而形成含牙囊肿，多来自单个牙胚，临床上见囊肿含一个牙；也可来自多个牙胚，临床上囊肿含多个牙。
本文根据颌骨含牙囊肿X线影像上的差异，将其分成四种类型。
According to the X-ray features of the dentigerous cysts in jaws, four radiologic types of these cysts were presented.
方法：总结46例含牙囊肿病例，分析囊肿对邻近器官及解剖结构的影响。
Methods:46 cases of dentigerous cysts were selected. We analyzed the position of these cysts, their adjacent normal structures and normal erupted teeth.
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