Methods:All 70 cases were taken Water area and Caldwell area films,some added tomographic,profile,cranial base films and maxillary sinus radiography.

• 方法 :对 70例上颌窦患者均摄有 Water位、Caldwell位、部分患者加摄体层片、侧位片、颅底片及上颌窦造影片。